Water-resource heat pumps work like ground-supply units, except they’re laid at the bottom of the pond, rather than underground. Should you have an appropriate entire body of drinking water on the home, these is often easier and less expensive to install than floor-source systems. บริษัท เจไฟว์ เอ็กซ์ปอร์ต อิมปอร์ต จำกัด บริษัท https://atecag062fdc6.boyblogguide.com/profile