Roth’s geothermal heat-pump systems are insulated with sound-deadening material. Variable-speed ECM blower motors are standard on all Roth equipment. Its scroll compressors have minimal moving parts and provide reliability. The coated air coils prevent corrosion and ensure longevity. They use heavy-gauge powder-coated steel foamed-in heat exchangers that prevent condensation and durable stainless-steel drain pans that are resistant to corrosion. Also offered is a comprehensive equipment and service warranty. There is minimal environmental impact, with no harmful emissions and no risk of combustion, fumes or carbon monoxide poisoning.