Hello everyone,
I’m hoping someone can help me here. I live in a smaller area where it’s hard to find a plumber that works on hydronic heating systems. I’m trying to heat the garage in order to help keep the bonus room above as well. The garage has r-10 foam under the concrete. There is a 4’ insulated foundation wall around the perimeter. I’m trying to see which option would be best for my situation. The garage is 850 sq ft
option 1 -would be use my tankless water heater which is 199k btu LP with a heat exchanger to heat the garage floor. I’m conflicted on this one because I see diagrams where they have hot and cold water connected together near the hot side of the heat exchanger. Also how would I disable the circ pump if someone was to take a shower or bath. Is disabling the circ pump even needed is the shower is being used. I may possibly need to add a baseboard heat in the bonus room later on as well. Only time will tell
Option 2 - I pick up a new/used 40 gallon hot water heat LP I was going to use to heat the garage. To me the heat exchanger on option one seems simpler. I would have to run another gas line and exhaust outside.
as of now I have 1 circ pump, 1zone relay, expansion tank. I guess I’m wondering do I need to make my connections out of copper or can I use pex? How critical is the size of line going in? Pex in the concrete is 1/2” oxygen barrier. I’m really hoping someone can help answer some of these. I appreciate any input.
I’m hoping someone can help me here. I live in a smaller area where it’s hard to find a plumber that works on hydronic heating systems. I’m trying to heat the garage in order to help keep the bonus room above as well. The garage has r-10 foam under the concrete. There is a 4’ insulated foundation wall around the perimeter. I’m trying to see which option would be best for my situation. The garage is 850 sq ft
option 1 -would be use my tankless water heater which is 199k btu LP with a heat exchanger to heat the garage floor. I’m conflicted on this one because I see diagrams where they have hot and cold water connected together near the hot side of the heat exchanger. Also how would I disable the circ pump if someone was to take a shower or bath. Is disabling the circ pump even needed is the shower is being used. I may possibly need to add a baseboard heat in the bonus room later on as well. Only time will tell
Option 2 - I pick up a new/used 40 gallon hot water heat LP I was going to use to heat the garage. To me the heat exchanger on option one seems simpler. I would have to run another gas line and exhaust outside.
as of now I have 1 circ pump, 1zone relay, expansion tank. I guess I’m wondering do I need to make my connections out of copper or can I use pex? How critical is the size of line going in? Pex in the concrete is 1/2” oxygen barrier. I’m really hoping someone can help answer some of these. I appreciate any input.