Tempstar Heat Pump product selection in Greater Vancouver

A homeowner in Burnaby called us after buying a heat pump on his own because the tier sounded impressive. It was oversized for a 1,400 square foot rancher, the return duct could not move the air the unit wanted, and the compressor spent its life hunting at the bottom of its range. Nothing was wrong with the equipment. Everything was wrong with the match.

That is the problem with product selection in one sentence. The tiers in Tempstar’s heat pump lineup are real and they do genuinely different things. The difference only shows up in a house that can use it. Ducts, panel capacity, where the outdoor unit can physically sit, whether you keep a gas furnace as backup: those decide more than the model badge.

What follows is the order our techs actually work in when we quote a system, from the North Shore out to Chilliwack. Load first. Then the indoor side. Then the constraints nobody thinks about until installation day.

Start with the house, not the model number

Walk into any Lower Mainland home and the equipment decision is already half made by the building. A 1958 Vancouver Special with original single-pane windows and no wall insulation behaves nothing like a 2018 townhouse in Langley with a tight envelope and modest glazing. Same floor area, wildly different heat loss, and therefore a different heat pump.

So the first thing we do on a selection visit is measure and look. Wall assembly and insulation depth where we can see it, attic insulation level, window type and orientation, air leakage clues around rim joists and old chimneys, ceiling heights, and whether the basement is heated space or a cold cave you are trying to warm through the floor.

We also ask how you actually live in the place. Which rooms are cold now. Whether the upstairs bakes in July while the main floor stays fine. Whether anyone works from home in a converted bedroom over the garage, which is the single most common problem room we find in Fraser Valley houses.

Those observations do two things. They feed the load calculation, and they tell us whether your comfort complaint is a capacity problem or a distribution problem. Those need different fixes. Buying a larger or fancier heat pump to solve a distribution problem is the most expensive mistake in residential HVAC, and it is the one homeowners make most often because it feels like the decisive action. It is not. The building comes first, every time.

The heat loss calculation that decides the size

Sizing by square footage, or by copying whatever furnace tonnage was there before, is guesswork dressed up as experience. A proper load calculation, done to the CSA F280 or ACCA Manual J method, works room by room: wall area times assembly value, window area times its performance, an infiltration estimate, ceiling and floor losses, then internal gains. It produces a heating load and a separate cooling load, and in our climate those two numbers are often not close to each other.

That gap matters enormously for heat pump selection. Greater Vancouver has a long, mild, damp heating season and a short cooling season with a handful of genuinely hot weeks. Size the outdoor unit to the heating load and you can end up oversized for cooling, which means short cycles, poor dehumidification, and a clammy house in August. Size to the cooling load and you may lean harder on backup heat in a cold snap.

How you resolve that tension is exactly what determines which Tempstar tier suits you. A variable-speed system can straddle a wider gap because it modulates. A single-stage unit cannot, so it has to be sized closer to one target and supplemented for the other.

Ask for the calculation in writing. Not a rule of thumb, not a number the salesperson recited from the doorway. If a contractor will not produce the load numbers behind the size they are quoting, you have no way to check whether the equipment fits your house or fits their truck stock.

How Tempstar tiers its heat pump lineup

Tempstar organizes its residential heat pumps into broad families that step up in capability rather than in cosmetics. The entry family uses single-stage compressors and fixed-speed indoor blowers. The middle family typically brings two-stage compression and a variable-speed indoor blower motor. The top family uses fully modulating variable-speed compressors paired with communicating controls.

Model names and series letters change from year to year, and the same physical outdoor unit is often sold under sibling brand names within the same parent group. Do not anchor on the name. Anchor on three things: how the compressor stages, what indoor unit it is certified with, and what the published performance is at low outdoor temperatures. Those three facts tell you what the machine does in your house.

Something homeowners find surprising is that the rated efficiency of a heat pump is not a property of the outdoor unit alone. It is a property of the matched pair, outdoor unit plus a specific indoor coil or air handler plus, sometimes, a specific control. Swap the indoor half and the rating changes, sometimes enough to drop the system out of a rebate program tier.

So when you compare quotes, compare full model pairings, not outdoor units. Get the outdoor model number, the indoor model number, and the AHRI reference number for the combination. Then look the numbers up yourself in the manufacturer’s published data. That single habit protects you from most of the confusion in this market.

Single-stage, two-stage and variable-speed: what you actually feel

Staging is the difference you notice daily, more than any efficiency figure. A single-stage compressor is on at full output or off. In a Vancouver November, when the outdoor temperature sits around six or seven degrees for weeks, your actual heat demand might be a third of what the unit produces. So it runs hard for eight minutes, satisfies the thermostat, shuts down, and repeats. You get temperature swing, a noticeable blast of air, and more start-stop wear.

Two-stage gives the compressor a low output setting, typically around two-thirds of capacity, which covers most of our mild heating season in longer, quieter runs. Longer runs mean the air keeps circulating, the temperature between rooms evens out, and the delivered air feels warmer because it is not a short burst.

Variable-speed goes further and modulates continuously across a wide range. On a damp 8-degree Coquitlam evening it may idle along at a low percentage of capacity almost indefinitely. That is where the comfort difference gets obvious: no swing, very little noise, and much better humidity control in cooling season.

The honest caveat is that the higher tiers need the rest of the system to cooperate. A modulating compressor forced through undersized ducts, or paired with a thermostat that only knows on and off, gives you a fraction of what you paid for. If the budget only stretches to either better equipment or corrected ductwork, fix the ducts first. That order is not negotiable.

Cold-weather capability and the backup heat question

Heat pumps lose capacity as it gets colder, because there is less heat outdoors to move. This is where our climate is genuinely kind. Metro Vancouver spends most of its heating season in a range where any modern heat pump works well. The design question is what happens during the Arctic outflow events that push the Fraser Valley and the eastern suburbs well below freezing for a few days each winter.

Two numbers govern that. The first is rated heating capacity at low ambient temperature, published in the manufacturer’s performance tables for each matched pair. The second is the balance point, the outdoor temperature at which the heat pump’s declining output crosses your house’s rising heat loss. Below the balance point, something else has to make up the difference.

Your designer sets that balance point deliberately by choosing the equipment size and the backup heat strategy together. Options are electric resistance heat in an air handler, or a gas furnace in a dual-fuel arrangement. Neither is automatically right.

What you should refuse is a vague answer. Ask directly: at what outdoor temperature does this system stop covering my load on its own, what takes over, and how much of the season is that expected to be. A contractor who has done the load calculation can answer in one sentence. Also worth noting, Abbotsford and Chilliwack see colder outflow conditions than Kitsilano does, so the same house plan gets a different answer depending which side of the valley it sits on.

Air handler or dual fuel with your existing gas furnace

If you have a working gas furnace with reasonable life left, dual fuel deserves a serious look. The heat pump handles the long mild stretch that makes up the bulk of our heating hours, and the furnace takes over when it gets cold enough that the heat pump’s efficiency advantage fades. A dual-fuel-capable thermostat manages the changeover based on outdoor temperature.

It works well here specifically because our shoulder seasons are so long. It also keeps a heat source that does not lean on the electrical panel during a cold snap.

The catch is compatibility. The furnace has to accept the control scheme, and its blower has to be able to move the airflow the heat pump coil needs, which is usually higher than what the furnace alone required. An older single-speed furnace blower can technically work with an entry-tier heat pump, but it will not deliver what a modulating system is capable of.

Going the other way, an air handler is a cleaner match for the higher Tempstar tiers because the blower is designed as part of the system, and it lets you remove gas from the heating equation entirely if that is your goal. It usually means a larger electrical service load and electric backup elements.

Any work touching gas piping, venting or the furnace itself in BC must be done by a TSBC-certified gas fitter. If you smell gas at any point, or a CO alarm sounds, leave the building and call the gas utility and a licensed technician from outside.

Ductwork: the quiet veto on the higher tiers

Here is what we find in older Lower Mainland houses. Supply trunks sized for a furnace that ran hot and short. Returns that consist of one undersized grille in a hallway. Flex duct pinched behind a joist. Runs to the top floor that were an afterthought when someone finished the attic in 1994.

Heat pumps move a larger volume of cooler air than a furnace does to deliver the same heat. If the duct system cannot pass that volume without excessive static pressure, several things go wrong at once. The blower works harder and gets louder. Airflow across the indoor coil drops, which hurts capacity and can cause coil frosting in cooling mode. And the rated efficiency you paid for quietly evaporates.

A competent selection visit includes a static pressure reading on the existing system, or at minimum a duct inspection with measurements of trunk and return sizes. We compare that against what the candidate equipment requires. Sometimes the fix is small: add a return, enlarge a grille, replace a crushed section. Sometimes the trunk itself is undersized and the honest recommendation is a lower tier that the ducts can actually feed.

Homeowners are often relieved by that conversation, because it saves them money and gives a better result. Nobody enjoys paying for capability that gets throttled in the first three feet of sheet metal. Ask for the static pressure number before and after installation. It is the closest thing to proof that the system is breathing.

Electrical service, panel space and the load calculation nobody mentions

Plenty of Lower Mainland homes still run a 100-amp service, and older Vancouver houses sometimes less. Adding a heat pump adds an electrical load, and if you are also adding electric backup heat elements in an air handler, that load can be substantial.

So before we talk about tiers we look in the panel. Is there physical breaker space. What is the existing calculated load with the range, dryer, water heater, and any EV charger. Is the service entrance conductor sized for what you want to add. In some cases the answer is that a service upgrade is needed, and that is a real project involving the utility and an electrical permit.

There are ways to avoid an upgrade. A dual-fuel setup with a gas furnace as backup keeps the big electric resistance elements out of the picture. Load management devices can also help in some configurations. A right-sized heat pump draws less than an oversized one, which is one more reason the load calculation pays for itself.

What you should not do is discover this on installation day. Get the electrical assessment done during quoting, in writing, with any required upgrade priced as part of the project rather than as a surprise. Electrical work needs its own permit and a licensed electrical contractor. If a quote for a heat pump in a 100-amp house makes no mention of electrical capacity at all, that quote is incomplete.

Where the outdoor unit goes, and what your strata says about it

The outdoor unit needs clear airflow, service access, a stable level base above expected standing water, and a location where condensate and defrost meltwater can drain away rather than pool and freeze on a walkway. It also cannot sit tight against a wall on more than the manufacturer’s permitted number of sides.

On Lower Mainland lots that is a real constraint. Side yards on older Vancouver and Burnaby properties are narrow, and the obvious spot is often directly under a bedroom window or right at the neighbour’s fence line.

Noise is where selection and placement intersect. Municipal noise bylaws set limits at the property line, and they vary between municipalities. Strata bylaws are frequently stricter, and many stratas require written approval and an alteration agreement before anything is mounted on common property or a limited common property patio. Some restrict the visible location outright.

This is a genuine argument for a higher tier. A variable-speed unit spends most of its life running at low speed, and low speed is much quieter than full output. If your only workable location is six feet from a neighbour’s bedroom, that acoustic difference may matter more to you than the efficiency difference.

Get strata approval in writing before ordering equipment, not after. We have seen installations paused for weeks over a council approval that should have been requested at quoting time. Bring the proposed model, its published sound rating, and a site plan showing the location.

Salt air, damp and what actually kills outdoor coils here

Coastal exposure is a durability factor most selection guides written elsewhere ignore entirely. If you are in White Rock, Crescent Beach, Ambleside, Steveston or anywhere with regular salt-laden air off the water, the outdoor coil and cabinet fasteners live a harder life than the same unit in Maple Ridge.

What happens is galvanic and pitting corrosion at the aluminum fin to copper tube interface, and at any dissimilar metal contact in the cabinet. Fins degrade, heat transfer drops, and eventually you get refrigerant leaks at the weakest joints. It is gradual, which is why people miss it until capacity has already fallen off.

Ask what corrosion protection is available for the model you are considering. Manufacturers offer coated coil options and different fin and cabinet treatments across their ranges, and availability varies by series and model year, so confirm with your installer against current product documentation rather than assuming.

Placement helps as much as coating. Get the unit out of the direct line of onshore wind where you can, keep it off the ground on a proper pad or stand rather than sitting in soil and leaf litter, and keep landscaping trimmed back so airflow stays clean.

Maintenance matters more in these locations too. Gentle coil rinsing with plain water on a regular schedule removes salt deposits before they concentrate. Do not use acidic coil cleaners on a coated coil, and never take a pressure washer to fins. That advice applies everywhere, but on the water it is the difference between a long service life and a short one.

Thermostats, communicating controls and compatibility traps

The control layer is where a lot of heat pump installations quietly underperform. Conventional 24-volt wiring uses a separate wire per function, and it works fine with single-stage and most two-stage equipment. Communicating systems replace that with a data connection between the thermostat, the indoor unit and the outdoor unit, letting them exchange operating data continuously.

Modulating equipment generally needs a communicating control to do what it is designed to do. That has consequences worth knowing before you sign. A communicating system usually requires the manufacturer’s own compatible thermostat, which means a third-party smart thermostat may not be an option, or may only run the system in a reduced mode.

If a specific smart thermostat is important to you, say so during quoting. There are perfectly good two-stage configurations that work with a wide range of thermostats, and choosing that path deliberately beats discovering the restriction after commissioning.

Wiring is the other trap. Older houses often have four or five conductors running to the thermostat location, and heat pump control needs more than that: reversing valve, second stage, backup heat, and a common wire for a powered thermostat. Sometimes there is a spare in the bundle. Sometimes the wall has to be opened or a wireless approach used.

Also confirm outdoor temperature sensing is included where the control strategy depends on it, particularly for dual fuel changeover. A dual-fuel system without a reliable outdoor reading either runs the furnace too early or the heat pump too long.

Defrost cycles, drainage and our very wet winters

Every air source heat pump ices up its outdoor coil in cold damp conditions and periodically reverses to melt it off. Greater Vancouver produces a lot of defrost cycles because our winter air holds so much moisture even at moderate temperatures. Understanding this prevents most of the worried calls we get from first-year heat pump owners.

During defrost the outdoor unit steams, the fan stops, and the indoor supply air goes cool for a few minutes. That is the system working correctly. It is not a fault.

What you should watch for is defrost that never fully clears the coil, ice building at the base of the unit, or a solid sheet forming underneath. That usually points to drainage rather than the equipment. Meltwater has to leave. If the unit sits in a depression, or a pad has settled, water pools and refreezes into a growing block that eventually blocks airflow or lifts the unit out of level.

So the installation details matter: adequate clearance above grade, a pad that will not settle in soft Fraser Valley fill, gravel or a drain path underneath, and nothing above the unit that drips onto it, such as an unguttered roof edge.

Higher-tier equipment often uses demand-based defrost logic rather than a simple timer, which means fewer unnecessary cycles and less comfort interruption. Worth asking about if your house sits in a persistently damp pocket, and much of the Fraser Valley qualifies from November through February.

Comparing efficiency ratings and registering the warranty

Cooling efficiency is expressed as SEER2 and EER2, seasonal heating efficiency as HSPF2, and instantaneous heating performance as COP at a stated outdoor temperature. All of them are published for a specific matched indoor and outdoor combination, and the current test standard is not directly comparable to older ratings printed on equipment installed years ago.

Rather than trust a quoted figure, do this. Get the full AHRI reference number for the exact pairing, look it up in the AHRI directory, and read the ratings there. Then check the manufacturer’s extended performance tables for capacity and COP at the low outdoor temperatures that matter here. That is the only apples-to-apples comparison between two quotes, and it takes about ten minutes.

Ratings matter for rebate eligibility too. Programs set minimum performance thresholds, and eligibility is tied to the pairing, not the outdoor unit alone.

Warranty is the other paperwork item people lose money on. Manufacturers typically offer a longer parts warranty when the equipment is registered within a limited window after installation, and a shorter default term if you miss it. Registration is usually online, needs the serial numbers and installation date, and takes minutes.

Confirm with your installer who is doing it, get written confirmation once it is done, and keep it with your commissioning report. Also read what the warranty covers: parts terms and labour terms are separate things, and compressor coverage often differs from general parts coverage. Check the actual warranty document issued for your model.

Putting it together: the decision framework and what drives the price

Work the sequence in this order and the answer usually presents itself. One, load calculation, heating and cooling separately. Two, duct capacity measured, not assumed. Three, electrical capacity confirmed. Four, placement and any strata or bylaw constraint settled in writing. Five, backup heat strategy chosen, which decides air handler versus dual fuel. Six, only now, the Tempstar tier.

By step six there are rarely more than two sensible options, and the choice between them comes down to what you value: comfort evenness and quiet operation, or a lower upfront outlay with a system the house can still use properly.

On price, the factors that move a Lower Mainland heat pump quote are the equipment tier and capacity, whether ductwork needs modification, whether the electrical service needs upgrading, the difficulty of the outdoor location and line set routing, refrigerant piping length, condensate management, permits, and removal of old equipment. Two identical houses on the same street can land in very different places on those factors alone. That is why we give a free written no-obligation estimate after seeing the house instead of a number over the phone.

Permits are not optional. Municipal mechanical and electrical permits apply, gas work requires a TSBC-certified gas fitter, and CleanBC and FortisBC program paperwork has its own documentation and timing requirements that you should confirm directly with the program before committing.

HeatLand has been sizing and installing heating systems across Metro Vancouver and the Fraser Valley since 1999. Call (604) 330-3812 to book a selection visit.

Quick Checklist

• Get a written room-by-room heat loss calculation, not a square-footage estimate
• Ask for the heating load and the cooling load as two separate numbers
• Collect the outdoor model, indoor model and AHRI reference number for every quote
• Have static pressure measured on the existing duct system before choosing a tier
• Confirm panel space and calculated electrical load, including any backup heat elements
• Decide the backup heat strategy: electric elements in an air handler, or dual fuel with a gas furnace
• Ask at what outdoor temperature the heat pump stops covering the load on its own
• Get strata or bylaw approval for the outdoor unit location in writing before ordering
• Ask about corrosion-resistant coil options if you are near salt water
• Confirm who registers the manufacturer warranty and get written proof it was done

Frequently Asked Questions

Reviewed by the HeatLand Heating & Cooling team — licensed, insured, TSBC-certified HVAC contractor serving Metro Vancouver & the Fraser Valley since 1999. Error codes, specifications, pricing and rebate programs vary by model and change over time; confirm details against your unit’s own manual, a written quote, and the manufacturer or CleanBC/FortisBC. If you smell gas or your CO alarm sounds, leave the home and call the gas utility and a licensed technician from outside.