if your chaufferie refers to a home heating system it may also provide the user with a traditional oven, in that case the choice should go to a boiler or an AGA. Do you have AGA boilers in America, in Europe that is often the term used instead of a boiler in spoken English as it is the most expensive thought-after trademark.
I could check what it is in America if boiler on its own is not enough for you.

Hello !

Chaufferie is either a boiler room or a heating plant. C'est selon.

Here's what I found in connection with wood :

Local Sustainability Case Study #15
... resources and the conservation of energy. Aside from constructing a municipal wood-fired heating plant, an advertising campaign for the building of private and ...
www.iclei.org/egpis/egpc-015.html - 10k - Archivé en mémoire - Pages similaires


Why Wood Heating?
... designed, modern wood burning heating systems provide cost effective ... dioxide (CO2) emitted when wood fuels are converted to ... by a growing plant; wood as a fuel ...
www.britishbiogen.co.uk/bioenergy/heating/whywoodheat.htm


Termium says the following about chaufferies :

2. Domaine(s)
– Ovens, Furnaces and Boilers (Heating)
– Ship and Boat Parts


boiler room CORRECT

boiler house UNIFORMISÉ
chaufferie CORRECT, FÉM, UNIFORMISÉ
DEF – A room where steam or hot-water boilers and similar equipment are located. Source
OBS – boiler house: term officially approved by CP Rail.
DEF – Local renfermant les appareils de production de chaleur, dans un bâtiment, dans une usine, à bord d'un navire, etc.

Or in combination with other words :

1. Domaine(s)
– Heating


furnace room CORRECT
chaufferie d'immeuble CORRECT, FÉM
DEF – Room primarily used for the installation of heating equipment.
EX – Safety for boiler and furnace rooms.

EX – Boiler-and furnace-room lighting.

OBS – Furnace: ... not to be confused with a boiler. Source OBS – chaufferie : Local renfermant les appareils de production de chaleur, dans un bâtiment, dans une usine, à bord d'un navire, etc


1. Domaine(s)
– Ovens, Furnaces and Boilers (Heating)


penthouse heating plant
chaufferie en terrasse CORRECT, FÉM
DEF – Système de chauffage consistant à établir des batteries de chaudières au sommet des immeubles.


Finally, I thought of simply saying "food-fired boilers", and I found proof that this term exists :

HVAC-Talk: For Contractors, Home-Owners and DIY - wood fired ...
... Author, ... i am looking at hooking one up in conjunction with my heat pump for backup heat. i have found several when i searched for wood fired boilers. ...
hvac-talk.com/vbb/showthread.php?threadid=2356 - 32k


Wood fired Eckrohr-Boilers. Wood fired boiler with water cooled inclined grate, 81 kB, Wood has ...
www.eckrohrkessel.com/boiler/holz.htm

And :

MESCOLI BOILERS and WOOD-FIRED DOMESTIC HEATERS
... Mescoli Caldaie can boast more than 40 years' experience in the steel boilers sector. It is a specialist in the technology of wood-fired domestic heating. ...
www.mescolicaldaie.it/eng/def.html


I hope that I gave you enough choice to find the right term that best suits your context.

Best regards,
Connie

Look at the following page, which compares (in video) wood burning boilers with and without gas cofiring:

http://www.cofire.com/videow.htm

Fuad

that's what it is called in Canada....

The answer here is as simple as possible: they mean the wood which is used for burning in whatever heating systems (either with or without boilers, stoves, ovens furnaces,etc.).

This wood is used purely for extraction of heat energy; it is renewavble since after cleaning a piece of woodland you can expect that some years after you will get again that part of woodland renewed either in artificial (and this is quicker) or natural way.

I spent some years lecturing in Africa and saw by my own eyes how strongly the population there depends namely on that source of energy: they used to apply charcoal for PREPARATION OF FOOD and for the majority of people inhabiting the country there was no any alternative (electricity, gas, domestic kerosine, etc.) for many people. Gracias a Deus, in my apartments we had electric supply, but some African neighbors used charcoal for preparation of food, heating water. etc.

With best regards,
Dr. Tagir S. Tagirov
KSU
(Ex-Director of the Faculty of Mathematics at UEM, RM:-)

Please excuse me; in my too long explanations about firewood and charcoal utilization I missed to pur exact meaning of your French words:)

Yours,
Dr TSTagirov.

chauffer means to heat & bois means wood