ID 37095177 © Valigursky | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
passover absorber architecture back boiler building chimney concept condensing diagram drain drainback drawing energy environment exchanger flat floor fossil fuel gas green heat heating home house illustration issue low model natural outline panel perspective pipe power preparation solar source system technology temperature transparent tube underfloor vacuum warm warmth wireframe