I recently built a 16x24 ft screened porch on my home. We have a few year old 80,000 btu furnace that was pulled during a complete changout but it worked. I’m thinking of an innovative way to warm my porch through the fall winter only when in use.
For enclosure I’m looking to use just canvas painters drop clothes to make curtain panels. Use 1/2 Emt conduit to make basically curtain rods to hang and put these curtain panels on. This should somewhat enclose the space.
The big question is the furnace. It’s a treated wood porch and the half closest to the house is about 9 to 9.5 ft off the ground. The half away from the house is about 6 ft off the ground. 2x10 joists. Treated decking.
My future plan is to enclose the under porch space as dry lighted tool space and yard toy storage for the kids
I’m thinking as a starting point to horizontal mount the furnace under the porch up high.
I briefly considered using the joist cavities like supply ducts but I’m not sure how the wood will enjoy 130F supply air. I was gonna pan 3 joists on the house half and pan 3 more on the other half and tap flex to each pan and let it pressurize through the deck board gaps.
Reconsidering due to a lot of heat on the wood. I also think combustible ducting is against code.
Any other ideas or suggestions? I could just run some flex in those cavities and use a few holes or grill taps to just release air unde4 the porch and let convection bring it up through the floor. Another idea I could run flex through the joist cavity and pan under the flex So technically the ductwork is non combustible but at the end it might still pressurize the cavity space.
Our winters here hit low 20s a few nights. Otherwise cold evenings are 40s. So look8ng at ideas to bring my porch up to 60s if possible and don’t want a furnace right inside my porch.
For enclosure I’m looking to use just canvas painters drop clothes to make curtain panels. Use 1/2 Emt conduit to make basically curtain rods to hang and put these curtain panels on. This should somewhat enclose the space.
The big question is the furnace. It’s a treated wood porch and the half closest to the house is about 9 to 9.5 ft off the ground. The half away from the house is about 6 ft off the ground. 2x10 joists. Treated decking.
My future plan is to enclose the under porch space as dry lighted tool space and yard toy storage for the kids
I’m thinking as a starting point to horizontal mount the furnace under the porch up high.
I briefly considered using the joist cavities like supply ducts but I’m not sure how the wood will enjoy 130F supply air. I was gonna pan 3 joists on the house half and pan 3 more on the other half and tap flex to each pan and let it pressurize through the deck board gaps.
Reconsidering due to a lot of heat on the wood. I also think combustible ducting is against code.
Any other ideas or suggestions? I could just run some flex in those cavities and use a few holes or grill taps to just release air unde4 the porch and let convection bring it up through the floor. Another idea I could run flex through the joist cavity and pan under the flex So technically the ductwork is non combustible but at the end it might still pressurize the cavity space.
Our winters here hit low 20s a few nights. Otherwise cold evenings are 40s. So look8ng at ideas to bring my porch up to 60s if possible and don’t want a furnace right inside my porch.
source https://hvac-talk.com/vbb/showthread.php?2222327-Suggest-interesting-ideas-for-warming-screened-porch-with-a-free-furnac3&goto=newpost
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