Updated July 30, 2026: Heat pump installation requirements depend on the equipment, home, jurisdiction and applicable codes. Manufacturer instructions, permits and qualified trade requirements take priority over general guidance.
A high-quality heat pump can perform poorly when the system around it is poorly designed or installed. Incorrect sizing, restrictive ductwork, bad indoor or outdoor unit placement, improper refrigerant piping, weak condensate drainage, incorrect controls and skipped commissioning can all create comfort, reliability and energy problems after installation.
Homeowners should therefore compare more than brands and equipment prices. A heat pump proposal should explain how the system will be sized, how air or heat will reach the required rooms, what electrical work is needed, where water will drain, how refrigerant piping will be installed and what measurements will be taken before the job is considered complete.
Many installation problems are preventable when these questions are answered before equipment is ordered.
What Are the Biggest Heat Pump Installation Mistakes?
The most serious mistakes usually happen in one of four areas:
- System design
- Mechanical installation
- Controls and electrical integration
- Commissioning
A heat pump can be a reputable model and still disappoint if any of these stages are weak.
Common Consequences Include:
- High electricity consumption
- Cold or hot rooms
- Short cycling
- Excessive AUX Heat
- Noisy airflow
- Poor humidity control
- Water leaks
- Outdoor icing problems
- Refrigerant faults
- Premature component failure
The Brand Cannot Correct the Installation
A premium heat pump connected to restrictive ducts, improperly charged refrigeration piping and badly configured controls remains a badly installed HVAC system.
1. Sizing the Heat Pump From Square Footage or the Old Equipment
This is one of the most common design shortcuts.
Why Square Footage Is Not Enough
Heating and cooling load also depends on:
- Insulation
- Air leakage
- Windows
- Doors
- Orientation
- Ceiling height
- Foundation
- Local design conditions
The Old Furnace Is Not a Load Calculation
An existing furnace may have been oversized from the day it was installed.
The building may also have changed through:
- New windows
- Insulation
- Air sealing
- Additions
- Basement renovations
Oversizing Can Create Problems
Potential effects include:
- Short cycling
- Uneven comfort
- Poor summer moisture removal
- Excessive airflow
- Noise
Undersizing Can Create Different Problems
The system may:
- Fail to maintain temperature
- Require excessive supplementary heat
- Operate at maximum output for long periods
Use a Canadian Sizing Process
Natural Resources Canada provides an Air-Source Heat Pump Sizing and Selection Toolkit for both new and retrofit residential projects in Canadian climates.
2. Ignoring Low-Temperature Heating Capacity
Nominal capacity does not tell you how much heat a system will deliver throughout a BC winter.
Heat Pump Capacity Changes With Conditions
Important factors can include:
- Outdoor temperature
- Compressor speed
- Indoor airflow
- Defrost operation
Compare the Actual Heating Load With Published Performance
The designer should understand how much capacity the proposed model provides at outdoor temperatures relevant to the home.
Do Not Compare Heat Pumps by Tonnage Alone
Two nominally similar systems can provide different heating capacity as outdoor temperature falls.
Backup Heating Depends on This Calculation
Low-temperature capacity affects:
- Thermal balance point
- Electric auxiliary heat requirements
- Furnace changeover strategy
- Winter comfort
3. Reusing Existing Ductwork Without Checking Airflow and Static Pressure
This is one of the biggest risks in central heat pump retrofits.
Existing Ducts Can Limit the New Equipment
Possible problems include:
- Undersized supply ducts
- Insufficient return air
- Restrictive filters
- Damaged flexible ducts
- Poor transitions
- Duct leakage
Why Static Pressure Matters
The blower has to move the required air through:
- Filter
- Indoor coil
- Supply ducts
- Return ducts
- Registers and grilles
As airflow demand increases through fixed ductwork, static pressure can rise sharply.
Possible Consequences of Poor Airflow
- Low heating capacity
- Coil problems
- High blower energy
- Air noise
- Temperature problems
- Equipment faults
Test Before Selecting the Equipment
Existing duct capacity should inform heat pump selection rather than discovering after installation that the air handler and duct system are incompatible roommates.
4. Ignoring Room-by-Room Heat Distribution
Total heat pump capacity is not enough.
The heat needs a path to the rooms.
This Is Critical for Ductless Systems
A living-room head does not automatically serve:
- Closed bedrooms
- Bathrooms
- Basement rooms
- Another floor
A Larger Indoor Head Does Not Make Heat Pass Through Walls
Oversizing one head to compensate for poor distribution can create comfort and cycling problems in the room where the head is located.
Possible Solutions Include:
- Additional indoor heads
- Concealed ducted zones
- Several single-zone systems
- Appropriate retained supplementary heat
Design Around Actual Occupancy
If bedroom doors are normally closed, the heating design should work with them closed.
5. Poor Indoor-Unit Placement
The easiest installation location is not always the best comfort location.
A Ductless Indoor Unit Needs Good Air Distribution
Avoid placements where air is:
- Blown directly onto beds
- Directed continuously at sofas
- Blocked by tall furniture
- Trapped in a small part of the room
Sensor Location Matters Too
The indoor unit may determine room temperature from a sensor located in or near the unit.
Poor placement can cause that sensor to experience different conditions from occupied parts of the room.
Consider Cooling as Well as Heating
A location that seems reasonable for winter heating also needs to distribute cooled air effectively during summer.
Service Access Matters
The indoor unit should allow future access for:
- Filter cleaning
- Coil service
- Blower cleaning
- Drain service
6. Poor Outdoor-Unit Placement
Outdoor location affects performance, sound, drainage and serviceability.
Avoid Restricted Airflow
Problem locations can include:
- Tight corners
- Small enclosures
- Dense shrubs
- Storage areas
Consider Defrost Water
Winter operation can release water under the outdoor unit.
A poor location can create:
- Icy walkways
- Water near doors
- Foundation drainage problems
Consider Roof Runoff
Water or snow falling from a roof should not interfere with the outdoor unit.
Consider Neighbours
Sound and airflow should be considered near:
- Bedroom windows
- Patios
- Neighbouring property
Leave Access for Service
The quietest-looking corner of the property becomes less charming when repairing the unit requires dismantling a fence.
7. Bad Condensate and Defrost-Water Planning
Heat pump installations need to manage water in both seasons.
Indoor Cooling Condensate
Moisture removed from indoor air needs a reliable drain route.
Drain Problems Can Cause:
- Water leaks
- Ceiling or wall damage
- Odours
- Microbial growth
- Equipment shutdown
Gravity Drainage Is Often Preferable Where Practical
The piping needs suitable slope and termination.
Condensate Pumps Add Another Component
They can be necessary, but also introduce:
- Noise
- Maintenance
- Potential failure
Outdoor Defrost Water Also Needs Planning
Winter drainage should not create an ice hazard or direct water toward unsuitable areas.
8. Poor Refrigerant Line-Set Installation
The copper piping between indoor and outdoor equipment directly affects refrigeration operation.
The Line Set Needs Correct:
- Pipe size
- Length
- Routing
- Insulation
- Physical support
- Protection
Manufacturer Requirements Matter
Different equipment can have requirements for:
- Maximum length
- Vertical separation
- Additional refrigerant
- Branch components
Insulation Needs Protection
Exterior refrigerant-pipe insulation can deteriorate from:
- UV exposure
- Weather
- Physical damage
Connections Need Care
Leaks at poorly prepared or installed connections can turn a new system into a refrigerant service call remarkably quickly.
9. Weak Pressure Testing, Evacuation or Refrigerant Charging
A system being new does not prove that its refrigeration circuit was properly prepared.
Before Commissioning, Refrigerant Piping Needs Proper Procedures
Manufacturer and applicable code procedures can include:
- Pressure testing
- Leak checking
- Evacuation
- Vacuum verification
- Refrigerant-charge adjustment where required
Why Evacuation Matters
Air and moisture do not belong inside the sealed refrigeration circuit.
Line Length Can Affect Charge
Factory charge commonly covers a specified piping configuration.
Longer or different piping arrangements may require charge adjustment according to manufacturer instructions.
Do Not Use Refrigerant as a Guessing Exercise
Correct charge is part of commissioning, not something established by repeatedly adding refrigerant until the technician feels spiritually aligned with the suction line.
10. Treating Electrical Work as an Afterthought
Electrical planning should happen before equipment is finalized.
Review:
- Heat pump electrical requirements
- Indoor equipment
- Electric backup heat
- Existing service capacity
- Panel space
- Required disconnects
Do Not Assume the Old AC Circuit Is Suitable
The new heat pump’s electrical requirements may differ.
Do Not Assume 200 Amps Is Automatically Required
Electrical capacity needs a project-specific assessment.
Electric Backup Heat Can Change the Project Dramatically
A large resistance heater can add substantially more peak electrical demand than the compressor alone.
Resolve Electrical Scope Before Installation Day
An outdoor unit sitting beside the house while everyone suddenly discovers the electrical plan is incomplete is not a milestone worth scheduling.
11. Incorrect Thermostat and Backup-Heat Controls
A mechanically good installation can perform poorly when controls are configured incorrectly.
Control Settings Can Affect:
- Compressor stages
- Reversing valve
- Auxiliary heat
- Emergency Heat
- Dual-fuel changeover
- Defrost support
Common Symptoms of Control Problems
- AUX Heat runs too often.
- The furnace starts too early.
- The compressor does not heat.
- The system heats when cooling is requested.
- Backup heat never operates when required.
Thermostat Compatibility Needs Verification
Do not assume every smart thermostat can properly control every:
- Variable-capacity heat pump
- Multi-stage system
- Dual-fuel configuration
Manufacturer-Specific Controls May Be Important
Some systems use communicating controls to manage capacity and system functions beyond ordinary thermostat calls.
12. Ignoring Permits and Regulated Work
A heat pump installation is not merely an appliance delivery.
Electrical Work Is Regulated in BC
Technical Safety BC currently states that most residential heat pump installations or upgrades require an electrical permit.
Gas Equipment Can Add Another Permit Scope
If the project modifies or removes a natural gas:
- Furnace
- Boiler
applicable gas work and permit requirements also need to be addressed.
Some Installations Can Have Additional Refrigeration Requirements
This depends on factors including equipment and building configuration.
Review current requirements through Technical Safety BC.
Ask Who Obtains Each Permit
The quote should clearly identify responsibility rather than leaving permits to emerge as a philosophical topic after the job is finished.
13. Skipping Heat Pump Commissioning
Commissioning is where the completed installation is tested to determine whether it actually operates as designed.
A Commissioning Process Can Include:
- Heating operation
- Cooling operation
- Airflow
- Static pressure
- Controls
- Backup heat
- Refrigeration system
- Condensate drainage
- Fault checks
For Ducted Systems
Verify that the blower and ducts are delivering the intended airflow.
For Ductless Systems
Verify:
- Each indoor zone
- Drainage
- Communication
- Temperature response
For Dual Fuel
Test both:
- Heat pump heating
- Furnace heating
and the controls that decide between them.
Do Not Treat “It Turns On” as Commissioning
An operating compressor proves that electricity reached a compressor. It does not prove correct airflow, charge, controls or system capacity.
14. Poor Homeowner Handover
A technically good installation can still disappoint when the homeowner does not know how the system is intended to operate.
The Homeowner Should Understand:
- Heating mode
- Cooling mode
- Normal thermostat strategy
- AUX Heat where applicable
- Emergency Heat where applicable
- Filter maintenance
- Normal defrost behaviour
- Outdoor-unit clearance
Explain What Is Normal
Examples include:
- Long variable-speed runtime
- Outdoor frost before defrost
- Steam during defrost
- Lower supply-air temperature than furnace heat
Explain What Is Not Normal
Examples include:
- Persistent heavy ice
- Water leaking indoors
- Repeated breaker trips
- Burning smell
- Recurring fault codes
Provide Documentation
Homeowner records can include:
- Equipment model numbers
- Warranty information
- Operating instructions
- Permit records
- Commissioning information
15. Comparing Heat Pump Quotes by Equipment Price Alone
Two proposals using similar equipment can represent very different installations.
A Lower Quote May Exclude:
- Load calculation
- Duct modifications
- Electrical work
- Permits
- Drainage improvements
- Commissioning
- Controls
A Higher Quote Is Not Automatically Better Either
Ask what work is actually included.
Compare Exact Equipment
Request:
- Outdoor model number
- Indoor model number
- Backup heating equipment
- Thermostat or controller
Compare the Design
Ask:
- How was capacity selected?
- How were ducts evaluated?
- How will closed rooms receive heat?
- What electrical work is included?
- How will the system be commissioned?
The equipment box is only one component of the project you are actually buying.
Common Ducted Heat Pump Installation Mistakes
Ignoring Existing Static Pressure
The ducts may not support the airflow required by the new heat pump.
Insufficient Return Air
Adding a larger supply airflow requirement without improving the return path can create high system resistance.
Poor Filter Design
A restrictive filter arrangement can consume a significant part of the available pressure budget.
Incorrect Blower Setup
Variable-speed air handlers still need correct airflow configuration.
Replacing Equipment Without Fixing Duct Leakage
Conditioned air lost into:
- Attics
- Crawl spaces
- Garages
does little for room comfort.
Ignoring Room Balancing
A new heat pump does not automatically correct poor supply distribution between rooms.
Common Ductless Heat Pump Installation Mistakes
Oversizing the Indoor Head
A large head serving a small room can create poor modulation and cycling.
Assuming One Head Serves the Entire Home
Closed rooms still require a heating strategy.
Bad Air-Discharge Direction
Indoor units should not create a permanent draft across beds or seating areas.
Poor Drainage
Incorrect slope or routing can cause condensate problems.
Outdoor Unit in a Tight Enclosure
Ductless does not mean the condenser can operate inside a decorative box with the enthusiasm of a houseplant.
Ignoring Minimum Capacity
Especially in multi-head projects, the system needs to serve small loads appropriately during mild weather.
Common Multi-Zone Heat Pump Installation Mistakes
Multi-zone systems introduce additional design considerations.
Choosing the Outdoor Unit From the Sum of Indoor Head Names
The designer should consider actual zone loads and equipment performance, not simply add nominal indoor capacities.
Oversizing Small Bedrooms
Available indoor-unit sizes may still exceed a small room’s load.
Ignoring Simultaneous and Partial Loads
The system needs to operate when:
- Several zones call
- Only one small zone calls
Ignoring Shared Failure Risk
All connected heads depend on the shared outdoor system.
Adding Indoor Heads Merely Because Ports Are Available
An unused port is not a medical condition requiring treatment.
Install zones because the building needs them.
Common Dual-Fuel Heat Pump Installation Mistakes
Assuming the Existing Furnace Is Automatically Compatible
Check:
- Blower airflow
- Indoor coil fit
- Controls
- Equipment condition
Incorrect Changeover Settings
Controls can cause the furnace to operate sooner or later than intended.
No Economic or Thermal Strategy
The homeowner should understand why and when the system changes heat sources.
Ignoring Furnace Maintenance
A furnace does not become maintenance-free merely because a heat pump was installed above it.
Assuming the Furnace Provides Heat During a Power Outage
Typical modern gas furnaces require electricity for:
- Controls
- Ignition
- Inducer
- Blower
Signs Your Existing Heat Pump May Have Installation Problems
One symptom does not prove a bad installation, but patterns deserve investigation.
Possible Warning Signs Include:
- Rooms have never been comfortable since installation.
- The system short cycles from the beginning.
- Duct airflow is unusually noisy.
- AUX Heat operates much more than expected.
- Indoor condensate repeatedly leaks.
- The outdoor unit sits in persistent ice or standing water.
- The system repeatedly loses refrigerant.
- Breaker trips began after installation.
- Outdoor vibration transfers into the house.
- The thermostat behaves unpredictably.
Separate Installation Problems From Equipment Failures
A technician may need to evaluate both:
- Equipment condition
- Original system design
A failed fan motor today does not prove the original installation was wrong, just as replacing the fan does not correct undersized ducts.
What Should You Check Before Signing a Heat Pump Quote?
| Question | What You Want to Understand |
|---|---|
| How was the heat pump sized? | Load calculation and selection approach |
| What exact equipment is proposed? | Indoor and outdoor model numbers |
| What is its low-temperature capacity? | Winter heating performance |
| How were existing ducts checked? | Airflow, static pressure and required modifications |
| How will each room receive heat? | Distribution and zoning strategy |
| Where will the outdoor unit go? | Airflow, sound, drainage and service access |
| How will condensate drain? | Indoor and outdoor water-management plan |
| What electrical work is included? | Circuits, disconnects, backup heat and panel work |
| What permits are required? | Permit scope and responsibility |
| How will the system be commissioned? | Measurements and operational testing |
| What warranty is included? | Manufacturer and labour coverage |
What Should You Check After Heat Pump Installation?
Heating Works
Verify normal heating operation.
Cooling Works
Verify cooling before waiting for the first heat wave to discover otherwise.
All Intended Zones Operate
Check each:
- Indoor head
- Thermostat
- Zone
Condensate Drains Correctly
There should be no unexpected indoor water.
Outdoor Unit Has Clear Airflow
Verify the final installation is not obstructed.
Controls Make Sense
You should understand:
- Heat mode
- Cool mode
- Backup heat
- Emergency Heat where applicable
Documentation Is Complete
Keep:
- Invoice
- Model and serial numbers
- Warranty documents
- Permit documentation
- Commissioning records where provided
Heat Pump Installation Planning in Metro Vancouver and Fraser Valley
Bernoulli Heating and Cooling provides free estimates for new heat pump installation projects across Metro Vancouver and Fraser Valley.
A heat pump installation assessment can include equipment sizing, duct or zone planning, indoor and outdoor unit locations, electrical requirements, backup heating, condensate drainage and commissioning considerations.
New heat pump installation estimates are free.
For an existing heat pump that is not performing correctly, the current diagnostic appointment charge is $135. Repair labour, replacement parts, refrigerant and additional materials are separate.
Call 604-518-4438 or email heatingbernoulli@gmail.com.
For local installation information, see Heat Pump Installation Burnaby.
Heat Pump Installation Mistakes: Frequently Asked Questions
What is the biggest heat pump installation mistake?
Choosing equipment before establishing the building load and distribution requirements is one of the most consequential mistakes because it affects sizing, airflow, backup heat and comfort.
Can a good heat pump perform badly because of installation?
Yes. Equipment performance depends on correct sizing, airflow or zone distribution, refrigeration setup, electrical work, controls and commissioning.
How do I know if my heat pump was sized correctly?
Review the load calculation, equipment performance at relevant outdoor conditions and how the selected capacity compares with the heating and cooling loads.
Is square footage enough to size a heat pump?
No. Insulation, air leakage, windows, orientation, construction and local climate also affect heating and cooling load.
Can I size a heat pump from my furnace?
No. Existing furnace capacity is not the same as the home’s current heating load.
Is an oversized heat pump bad?
It can cause cycling, comfort issues, excessive airflow and poorer humidity performance during cooling.
Is an undersized heat pump bad?
It may struggle during peak conditions and rely more heavily on supplementary heating.
Is long heat pump runtime proof that the system is undersized?
No. Variable-capacity heat pumps can intentionally run for long periods at low output.
Should the contractor calculate room-by-room loads?
Room or zone analysis is particularly important for ductless, concealed-ducted and multi-zone systems.
Can one mini-split heat an entire house?
Sometimes in a small open-layout home, but closed rooms and multiple floors often require additional distribution planning.
Can a bigger mini-split heat through closed doors?
No. More equipment capacity does not create an air path through a closed door.
Should indoor units be installed above beds?
Not automatically. Air direction, noise, comfort and future service access should all be considered.
Can poor indoor-head placement make the room uncomfortable?
Yes. Direct airflow on occupants or poor air mixing can create drafts and uneven temperatures.
Can the outdoor heat pump go anywhere outside?
No. Manufacturer clearances, airflow, sound, drainage, service access and local requirements need to be considered.
Can a heat pump be installed in a tight enclosure?
Only if the manufacturer airflow and clearance requirements can still be met. Tight decorative enclosures are often problematic.
Can shrubs block a heat pump?
Yes. Landscaping can restrict airflow and service access when allowed to grow too close.
Can roof runoff damage heat pump operation?
Outdoor location should account for roof runoff, snow and water that could interfere with the equipment.
Why does the outdoor heat pump make water in winter?
Frost on the outdoor coil melts during normal defrost operation.
Where should defrost water go?
It should drain to a location that does not create icing, building damage or another nuisance.
Can bad condensate drainage damage the house?
Yes. Indoor cooling condensate can cause water damage when drains are poorly designed, blocked or leaking.
Is a condensate pump always required?
No. Gravity drainage can be used where a suitable route is available.
Are condensate pumps unreliable?
They are normal HVAC components when required, but they add another device that needs correct installation and maintenance.
Can refrigerant line length affect the heat pump?
Yes. Manufacturer requirements can specify allowable lengths, vertical separation and charge adjustments.
Does refrigerant piping need insulation?
Applicable refrigerant lines require insulation according to the equipment and installation design.
Does exterior pipe insulation need UV protection?
Exterior insulation should be protected from weather and UV exposure as required by the installation design.
Can a bad flare connection leak?
Yes. Refrigerant connections need proper preparation, installation and leak testing.
Should refrigerant piping be pressure tested?
BC Hydro’s current retrofit best-practices guide calls for refrigerant line testing and evacuation procedures consistent with applicable manufacturer and code requirements.
What is evacuation?
It is the process of using a vacuum pump to remove air and moisture from the refrigerant piping before the refrigeration system is commissioned.
Can the installer just purge the lines with refrigerant?
The system should be installed according to manufacturer procedures and applicable refrigeration requirements rather than using shortcuts in place of proper evacuation.
Does a new heat pump need refrigerant added?
It depends on the equipment and installed piping length. Many outdoor units contain a factory charge for a specified configuration, with adjustments required outside that configuration.
Can too much refrigerant cause problems?
Yes. Incorrect refrigerant charge can affect system operation and reliability.
Can too little refrigerant cause problems?
Yes. Low charge can reduce capacity and lead to abnormal operating conditions.
Should a new heat pump need refrigerant every year?
No. Repeated loss of refrigerant indicates a leak or another charging issue that should be investigated.
Can existing AC refrigerant lines be reused?
Possibly, when their size, condition, cleanliness, routing and compatibility meet the new equipment requirements.
Should ducts be checked before a central heat pump is installed?
Yes. Existing duct capacity can materially affect equipment selection and performance.
What is static pressure?
It is the resistance the blower must overcome while moving air through the indoor equipment and duct system.
Can high static pressure make a heat pump noisy?
Yes. Restricted airflow can contribute to high air velocity and duct or grille noise.
Can high static pressure reduce airflow?
Yes. The blower and duct system have operating limits, and excessive resistance can prevent intended airflow.
Can I fix airflow by installing a stronger blower?
Not necessarily. Increasing airflow demand through restrictive ductwork can increase static pressure significantly.
Can a restrictive filter cause heat pump problems?
It can reduce airflow and contribute to excessive pressure drop.
Does return-air size matter?
Yes. The return system must allow enough air back to the indoor equipment.
Can a heat pump work with one central return?
Possibly, provided the return system can deliver the required airflow without excessive restriction and rooms have adequate return paths.
Can closed bedroom doors cause airflow problems in ducted systems?
They can when rooms lack adequate return-air or transfer-air paths.
Does every heat pump need a 200-amp panel?
No. Electrical requirements depend on the home, equipment and backup-heating design.
Can a heat pump work on 100-amp service?
Yes in some homes after an appropriate electrical capacity assessment.
Can electric backup heat trigger a panel upgrade?
It can add substantial electrical demand and therefore should be included early in system and electrical planning.
Can the old AC breaker be reused?
Only when the existing circuit and protective equipment meet the requirements of the new heat pump.
What size breaker does a heat pump need?
Use the electrical requirements for the exact equipment. There is no universal breaker size based on heat pump tonnage.
Does the outdoor unit need a disconnect?
The electrical installation must include the disconnecting equipment required by the applicable equipment design and electrical requirements.
Can bad thermostat configuration hurt heat pump performance?
Yes. It can affect compressor staging, auxiliary heat, reversing-valve operation and dual-fuel changeover.
Can the wrong thermostat cause AUX Heat to run too often?
Yes. Compatibility and installer settings can affect when supplementary heating operates.
Does every smart thermostat work with variable-speed heat pumps?
No. Some systems require manufacturer-specific or communicating controls to access their intended operating features.
Should backup heat be tested during installation?
Yes. Supplementary heating should be commissioned as part of the complete heating system.
Should Emergency Heat be tested?
When the system has an Emergency Heat mode, its intended operation should be verified during commissioning.
Should a dual-fuel furnace be tested during heat pump installation?
Yes. Both heating sources and the changeover controls should be verified.
Can the heat pump and furnace run at the same time?
Operation depends on the equipment and control design. The installer should configure the system according to the approved equipment arrangement rather than applying one universal rule.
Does a heat pump installation need a permit in BC?
Technical Safety BC currently states that most residential heat pump installations or upgrades require an electrical permit.
Does removing a gas furnace require a gas permit?
Applicable regulated gas removal or modification work requires the appropriate gas permit and qualified work.
Does strata approval replace a permit?
No. Property approval and technical permits address different issues.
Should the permit be discussed before installation?
Yes. The quote should identify which regulated work and permits are included.
What is heat pump commissioning?
It is the final verification process used to confirm that equipment, airflow, refrigeration, controls and other installed systems operate according to the design and manufacturer requirements.
Is turning the heat pump on commissioning?
No. Startup is only part of the process.
Should airflow be measured?
For ducted retrofit work, airflow and static-pressure assessment can be critical to verifying that the system is operating within its intended range.
Should heating and cooling both be tested?
Yes where conditions and manufacturer procedures allow appropriate commissioning of both modes.
Should condensate drainage be tested?
Yes. The drainage system needs to function correctly before handover.
Should the homeowner receive commissioning records?
Providing installation and commissioning documentation creates a useful record of how the system was configured and tested.
Should the homeowner receive model and serial numbers?
Yes. Keep equipment identification with warranty and service records.
Should the installer explain defrost?
Yes. Homeowners should understand that temporary frost, water and visible vapour can be normal during winter defrost.
Should the installer explain AUX Heat?
Yes when the system uses supplementary heating.
Should I use Auto mode after installation?
Follow the equipment and installer guidance. In ordinary seasonal operation, homeowners often use dedicated Heat or Cool modes to avoid unnecessary automatic switching.
Should I use large thermostat setbacks?
Heat pumps commonly perform well with relatively steady settings. Large recoveries can increase supplementary-heat use in some systems.
Can bad installation cause high electric bills?
Yes. Poor sizing, low airflow, excessive auxiliary heat, control problems and refrigeration issues can all increase energy consumption.
Can bad installation cause short cycling?
Yes. Oversizing, control problems and distribution issues can contribute.
Can bad installation cause freezing?
Installation-related airflow, drainage, controls or refrigeration problems can contribute to abnormal icing, although frost can also occur normally during heating.
Can bad installation cause refrigerant leaks?
Improperly installed piping or connections can leak.
Can bad installation damage the compressor?
Abnormal refrigeration, airflow, electrical or operating conditions can place unnecessary stress on system components.
Can installation problems show up years later?
Yes. Some deficiencies create immediate symptoms while others contribute to reliability or performance problems over time.
Can commissioning catch installation errors?
Yes. That is one of its main purposes.
What should I ask a heat pump contractor before hiring them?
Ask about load calculations, equipment selection, airflow or room distribution, electrical scope, permits, refrigerant procedures, commissioning and warranty.
Should I get several heat pump quotes?
Comparing several complete proposals can help identify differences in scope, equipment and design rather than focusing only on price.
Should all quotes specify model numbers?
Yes. Exact indoor and outdoor equipment should be clear before the contract is signed.
Should the quote specify ductwork?
Any required duct modifications should be identified rather than assumed.
Should electrical work be separately identified?
Yes. The homeowner should know whether circuits, disconnects, panel work and permits are included.
Should condensate drainage be shown in the quote?
The proposal should make the intended drainage solution clear, especially where routing is complicated.
Should I choose the cheapest quote?
Not solely because it has the lowest total. Compare what each contractor is actually designing, installing, testing and warranting.
Should I choose the most expensive quote?
Not automatically. More expensive does not prove better design. Ask for the reasoning and scope behind the price.
Does the equipment brand matter?
Yes, but correct selection, installation, support and commissioning can matter just as much to the final result.
Can a mid-range heat pump outperform a premium model?
It can when the mid-range system is properly sized and installed while the premium equipment is poorly applied.
Can an installation problem be corrected without replacing the heat pump?
Often. Controls, drainage, ducts, airflow, mounting and other installation deficiencies may be repairable.
When does a bad installation require replacement?
Replacement may become reasonable when the equipment itself is incorrectly sized or incompatible and practical corrective work cannot resolve the fundamental problem.
Should I get a second opinion on a new system that has never worked properly?
That can be useful, particularly when the original installer has been unable to establish the cause of persistent comfort, airflow or operational problems.
What should a second contractor inspect?
The equipment match, sizing, ductwork or zone distribution, refrigeration installation, electrical system, controls, drainage and commissioning settings.
How much is a Bernoulli diagnostic appointment for an existing heat pump?
The current diagnostic appointment charge is $135. Repair labour, parts, refrigerant and additional materials are separate.
Does Bernoulli charge for a new heat pump installation estimate?
New heat pump installation estimates are currently free.