Tankless water heaters have great selling points.
Endless hot water? Lower energy bills? Who wouldn’t want that?
But you may have heard that they don’t work well in areas with a cold climate, like Massachusetts.
Is that true?
Well, it is true that when it’s colder outside, it’s much harder for a tankless water heater to provide the hot water you need.
Does that mean you should count them out? Certainly not!
There are 2 factors that strongly affect whether the tankless water heater can keep up in a cold climate:
You have 2 fuel choices when it comes to tankless water heaters:
But electric tankless water heaters, like electric tank water heaters, struggle to heat water quickly.
So when the ground water gets colder in winter, the electric tankless water heater may not give you the “endless” hot water you’re expecting.
If you live in a cold climate like Massachusetts and are looking for a tankless water heater, go gas.
Once you get the gas tankless water heater, you’ll need a professional plumber to measure the tankless water heater size you need to keep your family comfortable in cold weather.
But, just for your information, a professional will typically look at these 2 factors to find the size you need:
This is how many gallons per minute (gpm) of hot water the tankless water heater can provide.
The flow rate you need varies on how much hot water you use at once and the local ground water’s temperature in cold weather.
Temperature rise is how much the tankless water heater needs to heat the groundwater to get it to the temperature you want it at (typically 120-140 degrees.)
As a formula, it looks like this: Desired hot water temperature – Incoming ground water temperature = Temperature rise.
The higher the temperature rise, the lower the flow rate. Makes sense, right? If the water is colder, the tankless water heater can’t provide as much hot water per minute because it takes longer to heat it. Just like it would take you longer to cook frozen food than refrigerated food.
Like we said, contact a professional to find the tankless water heater size your family needs so you don’t find yourself with a cold shower on a winter morning.
Rethinking getting a tankless water heater? Check out our comparison article: Tank vs Tankless Water Heaters.
Nicholson Plumbing, Heating and Air Conditioning gladly serves the Framingham-area. Contact us online to learn more about our services.
Francis from Nicholson Plumbing and Heating was excellent. He was here to evaluate HVAC in our home. He was very patient and answered all my questions. He is also polite and easy to communicate with him. He explained technical concepts to me in layperson terms!
- Shelley S.
Nicholson offered what is possibly the best customer service I have dealt with in a home repair situation. I called them because I was looking to replace my very old furnace. They came out to do an initial estimate, and then came back when I had some further questions about my options. After installing the furnace, they ran into some problems with my air ducts. This happened on a Friday, and the problem was fixed by Monday afternoon. In addition to their excellent service, they did quality work at a fair price. I would recommend them to anyone looking for an HVAC company in the Framingham area!
- Melissa T.
Recently used these guys because my HVAC unit AC wasn’t working (first hot day of summer). Showed up on time, wore booties, fixed the unit. During the visit we talked about how my unit was having problems in the winter – which was resulting in NSTAR service calls of maybe 3-4 times per season (I am on a service plan with them). He was the first guy to tell me WHY the problem was happening, and HOW to fix it. I find it strange that all of the NSTAR guys etc. no one took time to point out how to fix the source of the problem…Very professional, smart. I would use them again, and plan to for the fix on my heating unit!
- Ben J.
Nicholson Plumbing, Heating and Air Conditioning is the best and most reliable source for electrical service. We are proud to be Mitsubishi Electric Diamond Elite Contractors, that have gone through extensive accreditation and training in order to provide proven high-quality service. Get in touch with us whenever you need to have electrical work done in Framingham!