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Determining Heating for New House already under construction
Hello, I'm new to this forum. I building a new home and I'm trying to determine how to heat the structure. I've been contemplating using an outdoor wood furnace with radiant floor heating. But have some questions regarding the whole system. To start, I will give you some information on where I'm located.
I live in the mountains of Southwest Virginia and I personally live at about 2,400 ft above sea level. I live in a valley between mountains and this causes a lot of wind to come out of the west. I have no tree barrier around the home in order to block the wind. Trees would completely destroy the views we have so no trees will be planted.
Now about my project.
The main floor of the home is about 3,200 sq ft on top of a crawl space. There is a partial second floor of 1,620 sq ft. About 1,020 sq ft of the upstairs is over the main floor but 600 sq ft is sticking out over a concrete porch below. There are lots of doors and windows in all the walls on the main floor, especially the south facing wall which should help with winter sun and passive solar heat and where possible on the second floor. 1,600 sq ft of the main floor is a great room and has vaulted ceilings with a ceiling height of about 20ft the rest of the main floor has ceiling height about of 10ft. The second floor actually over looks the great room like a loft. The second floor has a height of about 8ft. My project is completely dried in already and I didn't think of this while doing the framing, so I put down regular subfloor instead grooved subfloor for the tubing. Plus I'm putting down wood floor in most of the house, so I've been planning on putting the radiant tubing under the subfloor in the crawl space and in the joist space for the second floor. I hope that is enough. This is 100% where the owner is the general contractor and in most cases the subcontractor as well and I live in an area where detailed plans aren't required so I don't have any specific plans. I'm working on putting a floor plan together so I can send off to get someone to design a radiant system for me. I hope this is enough about the project, but if not please ask.
My questions are which outdoor wood furnace is going to be better for my project? I've heard that fire boxes made out of stainless has issues and that computer boards are expensive to replace so you don't want a system with those either. Also wondering about the radiant under the subfloor if that will heat the house appropriately? I'm also concerned about a back up system. I travel in the winter time and have no one that I could ask to come and fill the furnace on a daily basis. I was planning on reaching out to Radiantec on designing the radiant system. I picked them because their website says they have been dealing with radiant since 1979. Is that a reputable company or is there someone else that I should reach out to? What problems or issues might I run into? I know that getting this right is critical to the enjoyment of the new house. I also don't have the money to make mistakes so really trying would like to make informed decisions. I also picked radiant because it is my understanding that the pumps to move the water around doesn't take a lot of electricity. At some point I would like to move to Solar energy. There are a lot of different systems out there and I'm really looking for guidance without someone just trying to sell me whatever product they have just because I'm in need. I would also say that I'm building this debt free so really need to conserve on cost as much as possible without sacrificing heat and comfortableness in the winter.