Roswell Bob
Solar Enthusiast
I have 80,000 btu lp heating slab in basement floor. Uses about 2 gallons/day when 0C outside. The slab isn't well insulated. We have slab on the second floor too. I am thinking a 5kW electric would do nice. If we get some cloudy day I can use backup LP generator to charge batterys and heat floor. That will load it up nice. On sunny days I have a 18kWh surplus. We have lots of glass facing directly south so we do well to begin with.The original oil burne
The original oil burner was 110,000 BTUs. My recent Model J I did myself estimated 50k BTU considering the various improvements.
The Taco outdoor reset control has very rarely gone over a boiler call for 160 degrees, but we also have not had particularly cold weather in the last 2 years where I had been watching it closely.
r was 110,000 BTUs. My recent Model J I did myself estimated 50k BTU considering the various improvements.
The Taco outdoor reset control has very rarely gone over a boiler call for 160 degrees, but we also have not had particularly cold weather in the last 2 years where I had been watching it closely.
I am familiar with the controller you are using. I'm sure you can get all the data you need from it.
What does it cost you per BTU
The original oil burner was 110,000 BTUs. My recent Model J I did myself estimated 50k BTU considering the various improvements.
The Taco outdoor reset control has very rarely gone over a boiler call for 160 degrees, but we also have not had particularly cold weather in the last 2 years where I had been watching it closely.
What is Lilco charging you for a kWh? I thought LI had the highest rates at one time. Are you still paying for Shoram?
I mis-read and thought you were radiant floor. I run hydronics at <100 in floor. I know you are hotter with baseboard. I suppose you know how much PV array you need to heat your place. How much do you need? I am thinking that my 18kWh/61,000btu/hr surplus should heat 2nd floor. This is our last winter on the ground floor.
As has already been said it makes no sense to store in battery or invert to ac then heat. I don't suppose you can get some geothermal going on over there. Based on your electric rates you can do a thumbnail calculation to see how much money you lose with solar. If you can store the heat in stone or paraffin then you heat it when the sun is out and use it overnight.