Home › Forums › Public Forums › General Plumbing › Hot water base board, how much is enough? › Reply To: Hot water base board, how much is enough?
24 Nov 2000 at 4:41 am
#288891
Harold Kestenholz
Participant
Using a rule-of-thumb for 30-year-old homes, your 3000 sq ft building should have a boiler with an output over 120,000 btuh. As your building could be heated to 60F max with an 85,000 btuh boiler, you need a boiler with 100,000 btuh output to feed the proper amount of 172 feet of baseboard to reach 70F inside; so your barn is fairly well insulated – at least moreso than the houses build with 6 inches of fiberglass in the ceiling and 3-1/2 inches in the walls.
Do the heat loss calculation and then follow the procedures at: http://www.hydronic.net