Greenhouse BTU Calculator

Temperature Inside (°F.)   Temperature Outside (°F.) Number of Connected Houses 1 2 3 4 5 6 7 8 9 10 (Indicate 1 for Individual House) Width of Each House Length of House Sidewall Height of House Check if greenhouse has Heat Retention System Check if Greenhouse is Ground to Ground Style (See Styles of Greenhouses Diagram) Select Greenhouse Covering on Greenhouse: ACRYLIC, CPC (Corrugated Polycarbonate, DBL POLY (Double layer of polyethylene with air space), FIBERGLASS, GLASS (Single Pane), INSUL STEEL (Steel siding with insulation), NONE (Select where greenhouse adjoins heated space), POLYCARB (8 mm Twin-wall polycarbonate), SGL POLY (Single layer of polyethylene film), STEEL (Steel siding). Roof Covering ACRYLIC CPC DBL POLY FIBERGLASS GLASS INSUL STEEL NONE POLYCARB SGL POLY STEEL Side Wall Covering ACRYLIC CPC DBL POLY FIBERGLASS GLASS INSUL STEEL NONE POLYCARB SGL POLY STEEL Opposite Side Wall Covering ACRYLIC CPC DBL POLY FIBERGLASS GLASS INSUL STEEL NONE POLYCARB SGL POLY STEEL End Wall Covering ACRYLIC CPC DBL POLY FIBERGLASS GLASS INSUL STEEL NONE POLYCARB SGL POLY STEEL Opposite End Wall Covering ACRYLIC CPC DBL POLY FIBERGLASS GLASS INSUL STEEL NONE POLYCARB SGL POLY STEEL