Whats the difference between a condensing and non-condensing tankless water heater?
Non-Condensing Water Heaters: These traditional models heat water and immediately vent the exhaust gases to the outside. This process unfortunately allows some heat energy to escape, reducing the heater’s overall energy efficiency. Typically, non-condensing water heaters achieve energy efficiency ratings around 80-85%.
Condensing Water Heaters: Designed with energy efficiency in mind, condensing water heaters capture and repurpose some of the heat from the exhaust gases. They employ a second heat exchanger to extract heat before the gases are vented. This ‘recycled’ heat preheats the incoming cold water, reducing the energy needed to reach your desired temperature. With this innovative method, condensing water heaters can reach energy efficiency ratings up to an impressive 98%.
While the upfront cost for condensing water heaters is generally higher than for non-condensing models, their superior energy efficiency can lead to significant savings over time. Please note, condensing water heaters need a drain for the condensed water, which may impact installation location options.
At Water Heater Doctor, we’re committed to helping you make an informed decision that aligns with your specific needs, budget, and property layout. Whether you prioritize upfront cost, long-term energy savings, or installation simplicity, we’ve got you covered.