auntievintage wrote:Lol, why, Yes it IS! This is Maine, of course, and things like that are certainly not unusual up here. People tended to make due with what they had on these old farms. Part of the remodel includes getting that basement cleaned out, pouring footings and adding new supports.
Well, that is just some funny chit right there. ....
I'm going to agree with folks here who've recommended that you do the heat loss and then size the unit based on the new improved farmhouse.
Since you've made it through a few winters with the handfired, you're not in danger of not having heat, and once you have the insulation in the way you want and can afford it will for certain change the size of the unit you'll need.
For example, I have radiation capacity in my house of ~160kbtu/hr, which when the house was built was probably required. Over the years, the house has had insulation blown into all the walls, storm windows and storm doors added and landscaping that has significantly reduced the impact of the wind.
With temps dipping into the 20's at night, I'm currently heating it with only three of the downstairs radiators firing. Once it gets real cold, I'll probably start getting calls for heat from the upstairs zone, but no where near what I have the capacity to put out.
Point is that what you need now isn't what you'll need once your finished, so if you can wait it will result in less money being spent on the furnace.
Plus, it will give you a chance to consider getting rid of a scorched air heater and going to hydronics, which is really the only way to heat a home.