Tankless Water Heaters in Northern Michigan: Are They Worth It?

Every few weeks, Cy gets a call that goes something like this: the water heater is on its last legs, the homeowner has been reading about tankless units online, and they want to know — is it worth it up here? It's a fair question. Northern Michigan has some specific conditions that affect how well a tankless system performs, and the answer isn't the same for everyone. Here's the honest breakdown.

How Tankless Water Heaters Actually Work

A traditional tank water heater keeps 40 to 80 gallons of water hot around the clock, whether you're using it or not. That's called standby heat loss — you pay to keep water hot while you sleep, while you're at work, and while you're on vacation.

A tankless unit (also called an on-demand or instantaneous water heater) has no storage tank. When you turn on a hot water tap, cold water flows through the unit and a powerful electric element or gas burner heats it on the fly. The water arrives hot within seconds, and the unit shuts off the moment you close the tap. No standby loss. No tank sitting idle.

The Northern Michigan Factor: Cold Groundwater

Here's where it gets specific to our area. Tankless water heaters are rated by flow rate — typically measured in gallons per minute — but that rating assumes a certain incoming water temperature. In Florida, groundwater comes in around 70°F. In Northern Michigan, depending on the season, your well water can come in at 38–45°F.

That temperature gap matters. The colder the incoming water, the harder the unit has to work to bring it up to your target temperature (usually 120°F). A unit that can deliver 7 gallons per minute in a warmer climate might only deliver 4–5 GPM in a Northern Michigan winter. That's still plenty for most households — a shower runs about 1.5–2 GPM, and a dishwasher runs about 1 GPM — but it's something to account for when you're sizing the unit.

Cy always sizes up a notch when installing in this area. Under-sizing a tankless water heater is the most common mistake, and it's an easy one to avoid.

Gas vs. Electric: Which Makes Sense Here?

Most homes in the Mancelona, Gaylord, and Bellaire area are on propane rather than natural gas. Propane-powered tankless water heaters work very well and are one of the most popular upgrades Zenco installs — especially for camps and cabins that want efficient hot water without a 50-gallon tank sitting around all winter.

Electric tankless units are an option, but they require significant electrical capacity — often 150–200 amps for a whole-house unit. Many older Northern Michigan homes and cabins simply don't have the panel capacity for that without an electrical upgrade. For point-of-use applications (a bathroom addition, a workshop sink), a smaller electric tankless can work well. For whole-house use, propane is almost always the better fit up here.

Are They a Good Fit for Cabins and Camps?

Yes — almost always. If you have a cabin you use seasonally, a tankless water heater eliminates two of the biggest headaches of a tank unit: the standby energy waste when the cabin sits empty, and the winterization drama. With a properly installed tankless unit, winterizing the water heater is much simpler. There's no tank full of water to drain and potentially crack. Some propane tankless units can even be shut down and de-pressurized in minutes.

Several of Cy's cabin customers around Torch Lake, Walloon Lake, and East Jordan have switched in the last few years and won't go back. The on-demand hot water is a nice perk, but the simplified seasonal ownership is usually what sells them.

What About the Cost?

Upfront, a tankless system costs more than a traditional tank. The unit itself runs $800–$1,500 for a quality propane model, and installation is more involved — new venting, possible gas line work, and a condensate drain for high-efficiency units. All in, you might spend $2,000–$3,500 depending on the job.

The energy savings over time are real, though. The U.S. Department of Energy estimates that on-demand water heaters are 24–34% more energy efficient than tank heaters for homes that use less than 41 gallons per day. For a cabin that sits empty half the year, the savings start immediately. For a primary residence, the payback period is typically 5–8 years — and a quality tankless unit lasts 20 years or more, versus 10–15 for a tank heater.

Maintenance: Don't Skip It

Northern Michigan well water is hard. As we've written about before, the high mineral content in local water creates scale buildup inside any water heater — but tankless units are more sensitive to it. Scale builds up on the heat exchanger and forces the unit to work harder, reducing efficiency and eventually causing it to fail early.

Annual descaling (also called flushing) keeps a tankless unit running the way it should. It takes about an hour and uses a simple descaling solution run through the heat exchanger. If you have hard water — and most of us in Antrim, Charlevoix, Kalkaska, and Otsego counties do — a water softener paired with your tankless unit is the best combo you can have. It protects the unit, extends its life, and improves the hot water quality throughout the house.

So — Is It Worth It?

For most Northern Michigan homeowners and cabin owners, yes. If you're already replacing a failing tank water heater and you have propane service, the upgrade to tankless is worth serious consideration. The energy savings are real, the lifespan is longer, and the convenience — endless hot water, no tank to babysit — is genuinely better.

That said, it's not the right answer for every situation. If your cabin only gets weekend use and you're happy draining the tank each fall, a standard tank unit might serve you just fine. If your electrical panel is already maxed out, an electric tankless whole-house unit may not be practical without upgrades.

The best thing to do is have a conversation with someone who knows the area and the equipment. Cy has installed dozens of tankless units across Northern Michigan — he can tell you quickly whether it makes sense for your setup and what the actual installed cost would look like. No pressure, no upsell. Just a straight answer.