![Furnace uses hot water to heat my apartment. The water heater is set to very hot but if I open the valves for the furnace, I lose hot water to sinks? : Furnace uses hot water to heat my apartment. The water heater is set to very hot but if I open the valves for the furnace, I lose hot water to sinks? :](https://i.redd.it/468t7au6f9w91.jpg)
Furnace uses hot water to heat my apartment. The water heater is set to very hot but if I open the valves for the furnace, I lose hot water to sinks? :
![Instant Electric Water Heater, 3500W Intelligent Mini Instantaneous Heater Without Tank with Temperature Display for Bathroom Kitchen, UK Plug (White) Instant Electric Water Heater, 3500W Intelligent Mini Instantaneous Heater Without Tank with Temperature Display for Bathroom Kitchen, UK Plug (White)](https://m.media-amazon.com/images/I/51dsmJBH20L._AC_UF894,1000_QL80_DpWeblab_.jpg)
Instant Electric Water Heater, 3500W Intelligent Mini Instantaneous Heater Without Tank with Temperature Display for Bathroom Kitchen, UK Plug (White)
![Instant Electric Water Heater, 3500W Mini Instantaneous Water Heater Without Tank Intelligent Instantaneous Water Heater Heater with Temperature ... Instant Electric Water Heater, 3500W Mini Instantaneous Water Heater Without Tank Intelligent Instantaneous Water Heater Heater with Temperature ...](https://m.media-amazon.com/images/I/71sWhqy9BJL._AC_UF894,1000_QL80_.jpg)