Description
Many HVAC appliances have a component that is known as a “heat exchanger.” They come in many forms, but it is the metal that composes your heat exchanger that often makes one of the biggest impacts.
What this piece of metal does is transfer heat from one fluid (e.g., hot water in your water heater) to another (e.g., domestic water running to your tap). There is a good amount of choice in the metal you can use for that heat exchanger, ranging from bronze and titanium to brass and carbon steel.
However, copper and stainless steel heat exchangers are the most commonly used because they are less expensive and still highly effective. One of the most common questions we are asked by our customers is some variation of: which is better a copper or stainless steel hot water cylinder, water heater, boiler, or other HVAC appliance?
The main concerns of a homeowner when choosing between copper and stainless steel should be thermal conductivity, durability, and price.
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