Wood stoves and thermal mass
Hello, I’m building an off-grid super-insulated home this summer in Central Ontario (Climate Zone 6). We are self-building on a tight budget. 2 storeys + basement.
We have wood on the property and want to use it for heating. The house is also designed with passive solar principles in mind. We planned to install a masonry chimney run through the centre of the house to take advantage of thermal mass, but now considering whether the cost is justified against the added costs. Our woodstove advisor is recommending we install a regular double-wall stainless chimney instead.
I’ve seen the posts on this site expressing skepticism about the benefits of thermal mass and calling into question some of the passive solar dogmas, but I’m wondering if thermal mass is actually more useful in the context of a woodstove, because it could “even out” the fluctuating curve of a woodstove. Moreover, the masonry chimney would be exposed to lots of winter sunlight coming in through our south-facing windows.
Any thoughts you have would be much appreciated!