The expansion tank located adjacent to or near the water heater heater is to protect the water heater and the pressure relief valve from water pressure emanating from surges in the water source. Is an Expansion Tank Required This depends. Some cities, counties or municipalities do require the use of an expansion tank, even if your house is serviced by a private well system, rather than public water. If you aren’t sure, you may want …
New Water Heater Energy Requirements
Some of you may have heard about the new water heater energy standards that took effect of April 16, 2015. The National Appliance Energy Conservation Act (NAECA) was updated and therefore directly impacted the water heater energy factor (EF) on all residential water heating devices and some commercial ones. Any water heaters manufacture prior to that date and still available are not affected by the new rules.