50m² of south-facing triple glazing delivers free of charge heat gain in winter, with a substantial roof overhang to stop summer time overheating. Minimal-Strength capabilities involve a five.5kW air resource heat pump, mechanical ventilation and heat recovery, and three.5kW of photo voltaic PV backed up which has a Tesla battery. https://echobookmarks.com/story19307052/facts-about-eco-friendly-homes-revealed