In the greater Vancouver area Across-7 c to 43 c stable operation within the greater Vancouver area. Big brand compressor United States heat pump compressor Copeland, equipped with overheating protection, shock-proof device, frost resistance, strong liquid shock resistance. Titanium foam heat exchanger Titanium heat exchangers titanium coil foam, corrosion resistance, water, small resistance. Intelligent defrosting According to work environmental intelligent defrosting process, completely avoiding "frost free defrost"