Hi Guys,
I have a 40 x 76 pole building with 12 foot ceilings. I just had pole building metal installed on the ceiling and insulated with R44 cellulose and vapor barrier. The walls have +R19 foam. The building is very well insulated. There are three 16 foot wide garage doors which I'll be insulating with foam panels. One utility door. No windows.
My goal is to be able to keep the building at perhaps 40 degrees when not used. And then be able to turn on the heat and warm it to 70 degrees in about a half hour to an hour.
I have an outdoor wood boiler that I'll be using to heat it. It will pump 185F water to the heat exchanger(s). Originally I was thinking of putting in two water-to-air hanging heaters (the kind with a fan behind the HX radiator). I was thinking one on each end of the building.
The place where I buy from has 140K heaters in stock. They can get 220K heaters if they order them.
What I don't know is if I'll need two heaters or if one will be enough. The foam insulating company said it won't take anything to heat the building and one heater will be plenty. But I'd like to hear some other opinions.
I can go with two 140K heaters, two 220k heaters, one 220k heater or one 140k heater. Obviously I don't want to waste money and buy more than I need.
I'm in Minnesota so -10F to -20F temps are not uncommon.
What do you guys think?
I have a 40 x 76 pole building with 12 foot ceilings. I just had pole building metal installed on the ceiling and insulated with R44 cellulose and vapor barrier. The walls have +R19 foam. The building is very well insulated. There are three 16 foot wide garage doors which I'll be insulating with foam panels. One utility door. No windows.
My goal is to be able to keep the building at perhaps 40 degrees when not used. And then be able to turn on the heat and warm it to 70 degrees in about a half hour to an hour.
I have an outdoor wood boiler that I'll be using to heat it. It will pump 185F water to the heat exchanger(s). Originally I was thinking of putting in two water-to-air hanging heaters (the kind with a fan behind the HX radiator). I was thinking one on each end of the building.
The place where I buy from has 140K heaters in stock. They can get 220K heaters if they order them.
What I don't know is if I'll need two heaters or if one will be enough. The foam insulating company said it won't take anything to heat the building and one heater will be plenty. But I'd like to hear some other opinions.
I can go with two 140K heaters, two 220k heaters, one 220k heater or one 140k heater. Obviously I don't want to waste money and buy more than I need.
I'm in Minnesota so -10F to -20F temps are not uncommon.
What do you guys think?