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During the winter season, a nice hot shower is a perfect cure to a long cold day. There’s nothing worse than when you go to take that shower and find the water is cold. Tankless water heaters are meant to heat water quickly, so you don’t face issues like running out of hot water. What does it mean if your tankless system doesn’t get hot? At ClearView Services, we get questions about winterizing tankless water heaters a lot. Here, we’ll share some information on why your water heater may not be working properly, and how you can fix it.

Signs Your Heater Isn’t Working

There are many ways to tell your tankless water heater isn’t working the way it should, or that your pipes have frozen, including:

  • Cold water while you’re trying to run hot water
  • Strange noises coming from pipes
  • No water coming from pipes

If your tankless water heater isn’t warming water, don’t try and force it. Your pipes may need to thaw before you can safely use the system. We recommend speaking with a plumber about thawing pipes.

If it’s not a pipe problem, and strictly a tankless water heater problem, call your heating and cooling or plumbing experts to have somebody come take a look at the heater. There may be a reason, aside from winter frost, that keeps the tankless heater from operating the way it should. It’s always better to let a professional deal with your heater when possible to avoid breaking the system.

Freezing Weather Leads to Frozen Water

Extreme cold temperatures can cause problems for pipes and water heaters. A problem area for this type of weather is during the night when homeowners turn the heat down and aren’t regularly running water.

Tanks are also prone to freezing if the power goes out, or if you leave your home on an extended vacation.

For cabins and rental properties, especially, winterizing your tankless water heater is important. Many seasonal properties don’t see as many visits during the cold winter season. This leaves your pipes and heater to freeze while heat is off and plumbing isn’t being regularly used.

If you’re nervous about losing power or experiencing an icy winter night, you may want to invest in solenoid valves, which protect your tank from freezing. The valves work by draining the water from your tank if it loses power.

Winterizing Your Tankless Water Heater

Whether you’re going to be away for a particularly cold weekend, or your rental property doesn’t have a winter tenant this year, you can winterize your tankless heater to prevent it from freezing:

  • Drain Your Heater: To begin winterizing, you should remove all residual liquid from the tankless heater before it has the chance to freeze. To do this, simply turn the water, gas and temperature control off. Ensure it is disconnected from your electrical system, put a bucket under the heater to catch water and remove the drain cap. Once you open the valves, take off the inlet filter and remove the drain plug it should drain into the bucket.
  • Turn off Water Heater for Season: If you’re not home, you don’t need to leave your heater on. Follow the above steps and don’t return the gas or water to flow. Instead, leave everything disconnected so the heater can’t refill and freeze. Leave your heater until you’re ready to use it again.
  • Turning Your Heater Back On: Plug the water drain, pump drain and condensate trap and put the valve drain plug and inlet filter back as well. Open cold and then hot water tapes and turn on your electric power to the heater. Turn on gas (make sure your temperature control is still off when you turn on gas). Once gas is on, turn on temperature control and you’re good to go.

Your Pipes and plumbing may also freeze when temperatures drop so low that tankless heaters stop running. To protect your plumbing, you can wrap pipes with insulation or heating cable. Heating cable is a particularly affordable option and protects up to minus 50 degrees Celsius.

If you’re unsure about how to protect or wrap external pipes, we recommend contacting plumber for help.

Call Us Today to Learn More

ClearView Services is a leading provider of tankless water installation here in Calgary and the surrounding areas. Want to know more about ClearView Services and our water heater services? Give us a call today to speak to a member of the team. We’re always happy to hear from new and returning customers.

Serving Calgary, AB and surrounding areas

We take immense pride in providing Calgary, AB and surrounding areas with top-notch plumbing, heating, and cooling services, ensuring every home and business operates smoothly year-round. Our team’s expertise and dedication shine through in every project, earning the trust and satisfaction of our valued customers across the city. Serving you isn’t just a job for us; it’s a commitment to excellence and a testament to our passion for keeping our community comfortable and thriving.

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A job well done.

Had them update and install our infloor heating two zones, and add tank less hot water on demand and install a water softener. Our technician was very professional kept his work area tidy, cleaned up after himself. He also wiped down all the equipment used including piping and tubing. He was friendly, kept us informed on his progress. You could tell he enjoys what he does… great job Thank you so much.

Carol Hill

Arrived on time and did a quick and efficient replacement of my kitchen sink faucet. Also took the time to further explain the operation of the water softener installed on the last visit.
Richard was friendly and knowledgeable. Great service!

Marybeth Marrow

Barry did a great job in replacing a leaking Hot Water tank. Just a bit shocked at how much the cost of a new tank has increased over the years. We would certainly use ClearView for future jobs.

Ken Stowell

I felt the company is oriented on quality of customer service , they send me the track link when dispatch the plumber, and the plumber is super on time too . I really appreciate Richard , he is supper patient to help me find out what is the best solution, focus on customer’s interest . Thank you again , I will definitely use your service again when I having plumbing problems, which I hope it will never happen.

Jing Huang

John came out to review our heating and AC set-up. He was very knowledgeable and patient as he walked us through the various units and proposed maintenance program. Would highly recommend.

Lucus Tomei

The appointment to come to check my boiler was prompt and early I’m the day so I didn’t have to wait the whole day. I received a call 15mins before the arrival. An email and a text was sent earlier. Gerry introduced himself and told me his purpose. He checked my boiler for a while then explained clear to me what the problem was, it was relief to know that it is nit necessarily a serious one. He made further checks and made some recommendations for change of some worn out parts, the re-glycol – 10yrs overdue and some leak that…

Roland B.

Clearview was excellent to deal with. Very professional in their approach and the picture sent of the plumber before hand is an excellent idea. Richard was great to deal with. He gave me different options to resolve the problem.

Rick Pultz

Can’t say enough about the great service I received from Heinz regarding some concerning alerts we got on our Ecobee Smart Thermostat yesterday. I felt cared for and trusted that he was focused on the necessary followup to assure our safety. Heinz is very good at his job.

Kim Koch

Thank you! Your service has always been reliable, professional,and friendly.
Rural folks can depend on you, as We have for more than 30 years, for both our property and others.
If you say you’re coming – you show up- or you promptly let us know of any delays! AND do a fantastic job. We’d asked for certain day & hours, as our neighbour has a B&B, didn’t want to cause issues with septic removal smells for them. YOU DELIVERED! Thank you. The Jackson’s.

Robert Jackson

Jon was on time and dispatch team did their best to get him to the property to do an inspection on leaking pipes and backup sewer system. Jon then immediately got another job into the system to have a deeper inspection of the entire system to determine where the blockage was.

David Crawford

We could not do the water valve replacement because the city could not shut the water off. I was warned ahead of time that this might happen so was not worried. Yamil was courteous and professional and I look forward to his return when the city can fulfill there end of the job. Justin and Sean were great with the furnace install. It went smoothly and Justin explained the new thermostat fully. The walk through on the furnace was useful and timely. Justin and Sean were friendly and professional and great to work with. John who came out for the initial inspection…

Paul Palardy

Heinz was professional and honest. He gave me options and the price. The price was the price and there were no extra charges. He worked on a boiler system that was having issues. He flushed and cleaned system and everything is back up and running. When he was finished he asked if I had any question. I look forward to him coming back to service this system again.

Curtis W.

Drake Ahern did an awesome job cleaning the ducts. Was very friendly and professional. Worked hard and paid attention to all the details. I’d definitely have him back next time.

David Dickinson

I had furnace venting replaced. This company is efficient and very professional. You know who is coming to do the work and given notice of when they’ll arrive. Heinz was very knowledgeable, professional, was not bothered by all my questions. He gave full explanations, reasons why, and great advice on maintenance care. He showed that he cared about what he was doing and was very efficient in getting the work done quickly. I highly recommend this company and Heinz.

Elsa Krienke

Our hot water tank blew and fortunately we noticed right away. We called Clearview Services late in the evening and we were answered right away. We were kept in the loop throughout the entire experience and Gabe Colpitts was the service technician who visited the next morning. He was very professional and spent the time to explain and educate the different options that were available. We were up and running with hot water the very next day.

Mike Mario

Barry was fantastic. Explained the steps that would be required to detect the leak and then proceeded with the work. He was professional and managed to fix our issue same day. He left our home clean and tidy before leaving. Overall very happy.

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