Question
with one furnace, running heat ducts underground.
the two are only 10 ft appart, so we figure we can share 1 furnace.
has anyone done this?
Answer
I don't know the answer to your question.
But, anytime I have heating questions, I go to www.thathomesite.com/forums. They have a heating forum with alot of great HVAC people on there. They could probably help you.