Air-conditioner having refrigerant heater

Air-conditioning control apparatus

Air-conditioning system for vehicles

All electric environmental control system for advanced transport

Anti-freeze assist apparatus

Apparatus and method for air-conditioning a vehicle

Apparatus and method for combined generation of heat and...

Apparatus and method for combined solar and heat pump heating an

Apparatus and method for controlling the water flow rate from th

Apparatus and method for converting an electric water heater to

Apparatus and method for heating a ground surface or volume of a

Apparatus and method for heating fluids

Apparatus and method for heating fluids

Apparatus and method for installing a heating system in a...

Apparatus and method for monitoring of an automatic deicing...

Apparatus and method for regulating flow and temperature in a ce

Apparatus and method for transferring exhaust from a tractor uni

Apparatus for adjusting a central heating installation

Apparatus for and method of recovering chimney heat

Apparatus for controlling the supply temperature in a central he