Cost savings of dedicated ventilation ducting
Does anyone have accurate information on how much less energy is used by a HRV ventilation system using a dedicated duct work distribution over a HRV connected into a central forced air furnace and using the furnaces duct and fan for distribution (when the furnace has an ECM motor).
Claims have been made that the dedicated ventilation duct system uses less energy - how much less? What is the payback period when you consider the cost to install the secondary duct system.
I am in the Pacific North West, so a predominately heated region with minimal need for air conditioning (max 4-6 weeks a year).
Posted Dec 15, 2011 12:59 PM ET
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