SleepingBear
New Member
I have a question related to the radiant floor system I am installing.
Context: The previous owner of our homes (two located on one property 60 feet from one another other) had ½ PEX oxygenated lines run throughout the entirety each structure. Both homes are Insulated concrete form construction (12 inch exterior walls), slab foundation, and PEX embedded 4 inches in a polished concrete floor. The two homes are both circles. 1 is 50 feet in diameter the other is 30 with a small 150 foot addition. So home 1 is 2000 square feet and home 2 is 900 square feet . Sounds odd, but those are our new tanks of homes.
Unfortunately the radiant floor pipes were never hooked up. The family relied on parlor stoves to heat the two homes. Supposedly they worked so well that they never completed the radiant install. There is a pair of 1 inch PEX leading from the utility room in the big house to the utility space in the small house. The plumbers notes (the homes were constructed 8 years ago) say that each loop is no shorter than 200 and no loner than 300 linear feet though most are closer to 300. There are 11 ½” pairs in the big house and 6 ½” pairs in the small house, with one designated for snowmelt that is currently just a stub out. I pressure tested everything and it all checks out.
The previous owners left a brand new 199,999 BTU Takagi/T-H3-DV-NG to be used to heat both systems. I intend to use it and another tankless water heater for the domestic water supply in each home.
Question:
I am in the process of figuring out the system layout and am unsure of the appropriate pump size and installation locations. If I am to maintain .6 gpm and have a total of 16 300’ loops what pumps are recommended for this sort of configuration? Where would you recommend locating the pump or possibly two separate pumps for this system. Generally, I am concerned that the head from the 60’ run between the homes will force me to use a pump that may be too strong for the rest of the system.
Much appreciated
Context: The previous owner of our homes (two located on one property 60 feet from one another other) had ½ PEX oxygenated lines run throughout the entirety each structure. Both homes are Insulated concrete form construction (12 inch exterior walls), slab foundation, and PEX embedded 4 inches in a polished concrete floor. The two homes are both circles. 1 is 50 feet in diameter the other is 30 with a small 150 foot addition. So home 1 is 2000 square feet and home 2 is 900 square feet . Sounds odd, but those are our new tanks of homes.
Unfortunately the radiant floor pipes were never hooked up. The family relied on parlor stoves to heat the two homes. Supposedly they worked so well that they never completed the radiant install. There is a pair of 1 inch PEX leading from the utility room in the big house to the utility space in the small house. The plumbers notes (the homes were constructed 8 years ago) say that each loop is no shorter than 200 and no loner than 300 linear feet though most are closer to 300. There are 11 ½” pairs in the big house and 6 ½” pairs in the small house, with one designated for snowmelt that is currently just a stub out. I pressure tested everything and it all checks out.
The previous owners left a brand new 199,999 BTU Takagi/T-H3-DV-NG to be used to heat both systems. I intend to use it and another tankless water heater for the domestic water supply in each home.
Question:
I am in the process of figuring out the system layout and am unsure of the appropriate pump size and installation locations. If I am to maintain .6 gpm and have a total of 16 300’ loops what pumps are recommended for this sort of configuration? Where would you recommend locating the pump or possibly two separate pumps for this system. Generally, I am concerned that the head from the 60’ run between the homes will force me to use a pump that may be too strong for the rest of the system.
Much appreciated