Rae Oster

S Bengi wrote:So far I know that your building is about 400sqft.
What the R value of your roof, wall floor.
How high is your ceiling, do you have a loft or 2nd floor?
Do you have a HRV or ERV? How airtight is your structure?

Have you thought about a radiant floor heating system, with a cost breakdown of $400 for 400ft of pex pipe, $300 for a circulating pump, you then connect it to your hotwater tank powered by solar/gas/heatpump/pellet/wood/etc.

We will have r 24 walls, r 49 roof, and cement slab floor (with insulation and vapor barrier).
Peak of the ceiling will be 15ft, there will be a double sleeping loft.
Plan on an hrv system with 2 vents and the building should really airtight, using sips and taping corners and windows.

I LOVE the idea of doing radiant floor heat. We plan to have a tankless hot water heater for showers etc. Would it work to set up a rocket mass or masonry heater system that heated the floors? Does there need to be a water holding tank or can you set that up with just a pump to circulate the water?

We are building a tiny-ish house (16x24). It’ll be crazy well insulated, so it shouldn’t take much to heat (super cold climate though). We don’t have a ton of space for the wood stove, and I don’t want to cook us out of the house, but I really want the efficiency of a rocketmass heater so we aren’t letting heat, creosote and all that junk just blow out the chimney. I think it would be amazing to be able to heat the house with just branches that fall off the trees on our property too! So sustainable!
My question is in the tiny house if we don’t want to dedicate a whole wall to a cob bench what are my options? I’ve been looking at making a small masonry style heater but it’s harder to find info about those, are they as efficient as rocketmass? I saw a batch box rocket with kind of a bell shape? Could I make something that tucks tidily into a corner that I could potentially still cook on top of?

Thank you!!