Our customers use their HVAC to “pre-cool” or (more often, pre-heat) their homes when rates are low.. but you need a house with enough thermal mass and insulati

Our customers use their HVAC to “pre-cool” or (more often, pre-heat) their homes when rates are low.. but you need a house with enough thermal mass and insulation that it can go 4-5 hours just “coasting”, which I guess is more common in cold climates with water-borne heat and masonry buildings..