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Need advice on installing in floor heat in garage
Garage floor cast iron drain pipe disinegrated & plugged. Going to remove old concrete basement garage floor and and install infloor hot water heat and remove enormous cast iron rad hanging from ceiling.Also will replace 90 year old cast iron sewer pipe under garage. Contractor wants to use COMFORT TECH R FOIL ultra CB for insulation. From reading past posts most everyone on "The Wall" advises using the foam board. Looking up the R factor on Comfort Tech web site it says this product has an R factor of 17.
Question 1: Using Comfort Tech R Foil, will this be a mistake? Contractor also said this would act as a vapor barrier??
Question 2: Would there be energy savings by removing the large cast iron radiator (installed 1928) in the ceiling of the garage and adding radiant floor heating with a seperate thermostate?? The garage rad is at the very end of the hot water two pipe system. Previous remodel projects added radiant heated floors to kitchen and bathrooms.
After reading various posts regarding insulation under concrete floors I am thinking the foam board would be the better way to go. Need advice on Comfort Tech product.
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