A Heat Pump for a Home That Still Burns Wood
A home on Nova Scotia’s South Shore heated by a wood-oil furnace wanted a heat pump without giving up the fire. Here is how we kept the two apart, safely.
Some homes in Nova Scotia still heat the old way. A furnace in the basement that burns wood, oil as the fallback, and a woodpile out back.
This was one of them. A home in Pleasantville, on Nova Scotia’s South Shore, where the owner wanted what a heat pump offers: cheaper heat for most of the year, and air conditioning in the summer.
What he did not want was to give up his wood heat. When the power goes out in February, a wood fire still keeps the house warm. That is not something you trade away lightly.
Can you add a heat pump to a wood furnace?
Yes. Just not the usual way.
On a regular oil furnace, a heat pump add-on puts a coil right on top of the furnace, inside the ductwork, and the two share the same air. That works because oil heat is steady and predictable.
A wood fire is neither. It can run very hot, and heat from a wood fire is not something you want pushing through a heat pump coil. So the standard setup was off the table.
Giving the heat pump its own path
Our technician's answer was simple: keep the two apart.
Instead of sitting on top of the furnace, the heat pump coil got its own section of ductwork off to the side, hung from the floor joists in the basement. Air reaches it through a separate loop that joins back into the main duct line.
Sliding dampers close off one path or the other. When the heat pump is running, its path is open. When the fire is lit, the damper goes in and the wood heat stays in its own lane.
And so nobody has to remember how it works, the rule is written right on the ductwork:
“Damper must be installed when fire is lit. Remove when using heat pump.”
It is not fancy. It is clear, it is on the duct exactly where you need it, and anyone in the house can follow it.
What the homeowner has now
- A central heat pump heating the whole house through the ducts he already had
- Air conditioning in the summer, which the furnace never gave him
- His wood-oil furnace still in place as backup, including when the power is out
- One simple rule for switching between them
The install itself took a single day. The measuring and the custom ductwork were sorted out ahead of time, so the crew arrived on install day with everything ready to go in.
Been told your heating setup is too unusual for a heat pump?
Wood furnaces, combination furnaces, older ductwork, tight basements. We hear “that won't work” a lot, and usually it means nobody looked closely.
Worth a conversation if you have:
- A wood or wood-oil furnace you want to keep
- A home where the power goes out and backup heat matters
- Ductwork that is already in place and working
This TRALO install came with 10 years parts, 10 years labour and 10 years full replacement.
This case study was based on tech job notes from an installation by TRALO Heating & Cooling installed in Pleasantville, Nova Scotia on September 10, 2026.
Equipment Installed
- TOSOT TU36-24WADU outdoor unit, 3 ton central heat pump, on a snow stand
- TOSOT TCAT36F cased coil, suspended from the floor joists
- Separate duct loop with two sliding dampers
- Honeywell smart thermostat
- Existing wood-oil furnace kept as backup heat
