Your solder should always be placed on the opposite side of the pipe where the flame is directed.…
Uponor Controls and Poly pipe cladding on boiler copper lines
The use of an existing well is a possibility but generally not conducive to a proper closed loop installation. The depth of the well and size of casing will be a consideration. Vertical loops are generally drilled by way of a 3' casing to a depth determined by the loop requirement. The well is then filled with a slurry to optimize heat transfer. The number of wells required is calculated as per the heating / cooling load of the home
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