Combined heat and power captures the byproduct heat for domestic or industrial heating purposes , either very close to the plant , or - especially in Scandinavia and eastern Europe - for distribution through pipes to heat local housing . By contrast CHP captures some or all of the by-product heat for heating purposes , either very close to the plant , or -- especially in Scandinavia and eastern Europe -- as hot water for district heating with temperatures ranging from approximately 80 to 130 Â C. This is also called Combined Heat and Power District Heating or CHPDH .