20 Best Electric Tankless Water Heater For Cold Climates (2023 Updated)

installed tankless water heater, worked great for a couple of years. Hardwater build up inside unit internals for me to remove unit, flush with solution to remove calcium build up. (not a easy process for the unskilled).

Great unit if you have soft water. Expect to replace within 2 years if you have hard water. or be prepped to remove and flush regularly.

Replaced a standard electric tank heater with this tankless unit to save space and electrical usage at a seasonal cottage on Lake Huron. Overall performance is everything that i’d hoped for. It provides hot water for a shower (not low flow) even in winter, when the incoming water temperature is near 0C.

When someone uses a faucet while in the shower, the regulator does a good job at continuing to deliver hot water but at a reduced flow. I’ve found we rarely use a shower + faucet at the same time, but it does work.

Upgrading faucets/shower to low flow would likely address this issue. The only issue I have is figuring out the lowest flow that activates the water heater. While doing dishes by hand, sometimes I reduce the water flow to a point that turns the hot water heater off.

It seems to need about 50% flow (based on my kitchen faucet) to enable heat. Not a big deal, but it would be nice if it generated hot water at a lower flow. Space saving is incredible. Mounted it on a wall above where the old tank water heater sat and can now put a washing machine there.

Installation is relatively simple with pex. I’m considering a similar unit for my home. Absolutely worth the money.

This 29 trend took 3, 220amps I had my electrician install them he also put the 220 breakers separated from each other because they can draw a lot of heat. So to lessen the heat installing them apart from each other in the panel is the smartest way.

And we have 3 bathrooms and the water is hot with a lot of pressure.

Excellent. Installation was easy and the unit has been reliable so far (about 6 months). We were a little concerned about capacity since this was the largest electric unit we could fit on our existing service and we don’t have gas available.

The unit will provide hot water for one shower and washing dishes simultaneously or showering while washing clothes. Those are about the only scenarios where 2 users are going through hot water at the same time for our household.

There is a pressure drop when using 2 hot water sources, but nothing terrible. I would hazard a guess that if you wanted more than 2 simultaneous uses you should probably step up to gas or the next biggest unit.

Otherwise this has been a great upgrade for us and I would purchase another.

This is the perfect solution to add hot water to a sink location that does not currently have it. Even if you’re adding a sink location, with this unit, you will only need to add a cold water line. The cold water line can be slit, and when you run the water through this heater it comes out hot.

There is no storage tank associated with this device. That makes it very small and easy to hide in your base cabinet. However, because it heats as the water runs through, the faster the flow rate, the less it heats.

It heats close to 70 degrees at slower rates, but closer to 30 degrees at fast rates. The unit will require 240 volts with a 30 amp breaker using number 10 wire. If you don’t have experience with electrical installation, it’s probably best to leave this step to a professional.

If you’ve always wanted a garage deep sink to wash your hands or a sink next to your grill station on your patio, this heater will help you eliminate the need for a hot water line. This will ultimately save you time and money.

I installed the Bosch Tronic 3000 under the bathroom sink of my 32 foot travel trailer and it has worked perfectly for the cramped small and awkward space. Now I do not need to waste water waiting for it to heat up to wash your hands.

This has saved me from having to run city water or fill the fresh water tanks as often when there are no hookups. It was fairly easy to install as I am an electrician by trade but still easy enough for a home do it yourselfer as long as you have basic electrical skills.

A little bit of install time is well worth it in my opinion. The size of the unit is small enough for tight spaces and It does deliver hot water quickly. I plan on installing a slightly larger unit under the kitchen sink.

Great product!.

I installed this unit inline with my electric tanked water heater. I’ve done this on multiple homes in the past with great success but it seems to confuse a lot of people. The rate at which you run out of hot water is greatly dependent on the water temperature coming into your water heater.

So if this unit can bump my 45 degree water up to 75/80 degrees then that will give me an extra 10-15 minutes of shower time before the hot water runs out. So far it has worked great and we haven’t ran out of hot water since installing it.

Plus I like the fact that I’m only spending money to keep 40 gallons of water hot instead of adding another tanked water heater and doubling my power consumption.

The unit is small and fit anywhere in the Bathroom Vanity Cabinet, I had to install a dedicated 30A breaker with 10G cable. This unit was install in addition to my Tankless water heater. Over all, good product, would be great if a 12″-16″ hose was included.

I had the same unit in a house I bought and it was at least 13 years old (used by snowbirds) when it died (stopped making hot water and leaking) so for the price this seems reasonable service. I bough the same unit to simplify re-installation.

My major issue is that if you open the unit, which will break the seals, it voids the warranty. The unit I had was installed correctly where the power wires should be connected directly into the unit (evidently voiding the warranty).

The new ones come with a pigtail wire. You need to anchor a junction box nearby and use big wire nuts to splice in the pigtail. For a new installation I would suspect that the electrical inspector would say you can’t do this and need to connect the feed wire directly to the unit.

Also, the install directions for this unit say that you are supposed to use 6 gauge wire, and the pigtail is 8 gauge. Does this make sense? One good feature is that the old unit had no clearance to put a wrench on the unit fitting when tightening the compression nut.

Without a wrench on the unit you could damage the fittings on the unit when cranking on the compression nut. Evidently they figured this out and the new units have more space to attach a wrench that holds the unit plumbing in place when tightening the compression nut.

It seems like a good unit, especially for the price but the wiring requirements makes no sense.

Purchased this model 11 years ago for 179. 00. I used it in my business to service 3 bathrooms and one shower. Worked flawlessly. we sold the building and had to leave it behind. Now I just built another building and the titan was first on my list.

This new model services 2 bathrooms and a washing machine. I have 4 girls working at the location and they use it all the time. People are amaized at the size of the unit. I have 12″ of copper pipe right off the heater then I switch to pex via a shark bite coupling.

My old unit worked on a 50 amp breaker but this new one likes a 60amp breaker better. I have it in the equipment room next to the breaker panel and use #8 wire to a dryer plug. I have a dryer piggy tail on the unit itself.

I dont run the hot water faucet wide open. If I do, the temperature is warm to hot. If I restric the water flow slightly, I can have boiling water out of the unit. The slower the water travels, the hotter it gets.

Gone are the days of having 80 gallons of water boiling day and night just to have hot water when needed. Now it heats as it flows. J. Guidera TFC Sports floors Conway, SC.

Gives you instant hot water while saving you money energy-wise! Small, thus space-saving. Best part is it gives you an endless supply of hot water. My first one (N-85) lasted about 10 years. I hope this N-120 lasts as long.

Bought this to replace another brand of tankless water heater (that you can buy at a big box store) at my Dad’s house which only lasted about 4 years which was a big disappointment. Titan is the best there is for your money.

This unit is heating water for a 4 bedroom 2 bath home.

I was hoping for so much from this product. Yesterday I took such a hot shower during lunch and then that evening when I gave my daughter a bath, it only came out lukewarm. My shower today was borderline cold.

Tomorrow it may be hot again. I live in Northern VA and would not recommend this product. It ruins the experience of our new bathroom remodel. There’s nothing worse than remodeling your bathroom to your dream bathroom and hearing your wife say, well that bath wasn’t relaxing since she couldn’t get hot water.

I had the Tempra 24 Plus installed in June of 2020 and it’s been great. I haven’t run out of hot water when my family are all taking showers around the same time or when the dishwasher or washing machine are also running hot water.

I love that I can simply adjust the temperature on it as well. I will say that I was renovating my garage and the electrician put in a new electrical panel so he also made sure it would handle everything in there.

Supply House was great to deal with and helped me figure out what size I needed as well.

Don’t buy it. it’s terrible,I bought the tempra24 plus from home depot, I installed all specified wires and circuits so it would work properly and efficiently but this this is horrible. my electric and water bill did go down even more than I had Anticipated but hate it.

No constant temperature what so ever. I’m getting it removed and getting one installed by a professional. the tempraplus was a waste of money.

Needed this for extra boost for a walk-in tub. My wife’s 75 gallon tub required more than our electric water heater could handle. At first I thought this would handle the job alone to give her quick warm water.

Wrong. Even though I live in mid-Florida with supply temperature at 65 degrees the flow capacity was not enough. I could have gone with a larger unit but i would have need a bigger electric panel. Yikes! So, I kept my electric heater and reinstalled it as a preheater for the Eco.

Problem solved. Plenty of capacity now with the preheater set at 100 degrees. I really thought I could do away with my original water heater and utilize that big space. So if you need this for a really big tub or demand get the bigger one if you have the electrical capacity.

i had it professionally installed and its keeps popping a fuse and stops working all the time. i think it finally completely failed after 1 years of use only and 900 later. i home RHEEM will send me replacement as its under warranty.

but seems liek its one of the worse ones to have. all bad ratings. i would like to upgrade to a better one.

Had this unit professionally installed above my guest house. Bought it at Home Depot on 1-15-2020. The guest house has ONE (1) shower and ONE (1) bathroom sink. That’s it. It was replacing an old 30gal electric from the early 80’s.

This unit WILL NOT heat tap water to shower temperature. The dial on the water heater is set to 140. With the shower turned to hot ONLY, the water was tepid. Lukewarm. If I test it in the sink, same thing, lukewarm at hot only (fully on).

If I turn the sink to a very slow flow, I get hot water. This will NEVER heat enough water for a shower. After my contractor called Rheem and fully troubleshot the unit, Rheem basically shrugged and said, “They need to buy a bigger unit.

“. Bear in mind, I live in San Bernardino County, along the 210 corridor (not in the mountains). This unit is rated for 2. 14 GPM and it does NOT achieve that. Not even close.

I installed this unit in my 2/1 1960’s condo replacing a 30gal water heater. What a great product! The install was easy i had to upgrade my breaker to a 60 from a 30 which meant upgrading the wiring gauge, which wasn’t hard at all.

I have hot water on demand now that never runs out! my 30 gal tank would only provide about a 5 min shower now its as long as i want. I have to fill my tub with free flow hot water at only half flow but to keep hot water but i figured as much from such a small unit.

overall it was very much worth it to ditch the hot water storage tank and have hot water on demand for as along as in need it. If i were to try to heat a larger house with 2 or 3 baths I would suggest a larger unit but the product is GREAT!!.

I HAVE BOUGHT this product again and again. It is only used by me and My Wife. I have always thought that Bosch was Top Quality, and that is why I bought the first one. I bought it at H. D. They Never said that model was Out of Production for Years and had sat on their shelf.

When I had a problem with it, I found out that there were NO Parts available for that unit. I bought the second unit from your company. I liked it a lot. Now on unit #3 in less than 5 years. Your people have been Very Helpful.

THANK YOU.

Purchased this unit for a non conventional application. I’m using it to heat the concrete slab my shop. It’s replacing a 50 gallon water tank. So far it has worked really well. Because it delivers a constant heat I’ve been able to run it at a lower temperature.

This gives me a more evenly heated slab while using less energy. It also reduces the age old problem of the slab continuing to raise the temperature in the building even after the unit cuts out.