"Heater system" refers to a set of devices or equipment that helps generate and distribute heat in a building or an enclosed space. It is typically used to warm up the area during colder weather conditions. Full definition
The seat heater system gives you all the features and quality you would expect from an original equipment installation. (addittoit.com)
Conventional water heaters can also be replaced by solar thermal water heater systems that use energy from the sun to heat water, which is then stored until needed. (2030.acadiacenter.org)
I would like to trade my 2014 for a 2018 but only if the rear heater system operates as it should. (fordauthority.com)