![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? :
![plumbing - Hot water heater T&P discharge going into furnace condensate pump? - Home Improvement Stack Exchange plumbing - Hot water heater T&P discharge going into furnace condensate pump? - Home Improvement Stack Exchange](https://i.stack.imgur.com/Ps712.jpg)
plumbing - Hot water heater T&P discharge going into furnace condensate pump? - Home Improvement Stack Exchange
What might have happened if an AC and Furnace are replaced but then the hot water heater stops working immediately after? - Quora
![Alber Service Company - Water Heaters Photo Album - Gas Furnace & Hot Water Heater Replacement in Haddon Heights, NJ Alber Service Company - Water Heaters Photo Album - Gas Furnace & Hot Water Heater Replacement in Haddon Heights, NJ](https://cdn.treehouseinternetgroup.com/uploads/photo_gallery/medium/154119-59a44fd1a9b25_costabefore1.jpg?v=1503939132)