Est. 2015 | 50+ Years of Combined Experience
A tankless water heater heats water only when you need it, so you are not paying to keep 40 or 50 gallons hot around the clock and you do not run out halfway through the third shower. Getting that performance depends on proper gas supply, venting and sizing, and on regular maintenance to handle Salt Lake Valley hard water. I Know A Guy HVAC installs, repairs and descales tankless water heaters for homeowners across the valley. We’re your guys!
Mon–Fri 7 AM–5 PM · Serving the Salt Lake Valley
Tankless units need far more gas at full fire than a tank, plus their own venting. As an HVAC company that runs gas lines and vents furnaces every day, we handle the whole conversion in-house.
We install isolation valves for flushing on every unit and set you up with a descaling schedule that fits Salt Lake Valley water, so scale does not cut your unit’s life short.
We size the unit to your fixtures and to cold winter incoming water temperatures, and we will tell you if a tank water heater is the better fit for your home.
Removal of your old tank, gas line upgrades where needed, new venting, water connections with service valves, and a condensate drain for condensing models.
Replacing an aging tankless unit or installing one in a new build or remodel, with the gas, venting and electrical requirements checked before we start.
Troubleshooting error codes, ignition and flame failures, fluctuating water temperature, low flow and venting faults.
We circulate a descaling solution through the heat exchanger, clean the inlet filter screen, and check burner operation and venting.
A typical gas tank water heater uses a fraction of the gas a whole-home tankless unit needs at full fire. The existing line to your water heater is often too small, which leads to ignition problems and temperature swings when multiple fixtures run. We calculate the load and upgrade the gas line when required.
Tankless water heaters generally cannot reuse the old metal flue from a tank. Condensing models vent through PVC and need a condensate drain, while non-condensing models need a vent rated for their exhaust. Where your water heater sits determines the best vent route, so we plan this during the estimate.
Salt Lake Valley water carries a lot of dissolved minerals. In a tankless unit those minerals collect as scale on the heat exchanger, reducing flow and efficiency and triggering error codes. Annual descaling is the single most important thing you can do to protect the unit, and a water softener helps further.
Thinking about going tankless, dealing with a unit that throws error codes, or overdue for a descaling? We provide free estimates on installations throughout the Salt Lake Valley. Prefer a traditional tank? See our tank water heater installation and water heater repair services.
Call or text I Know A Guy HVAC at (385) 455-4700, Monday through Friday, 7AM to 5PM, to schedule tankless installation, repair or maintenance.
With over 50 years of combined experience, we’re a local team of experts here to help you with your heating, cooling, and indoor air quality. From residential to commercial and new construction, we can help with whatever your need.
We pride ourselves on helping you get affordable service, and one of the best ways to cut down on pricey (and unexpected) repairs is with routine maintenance. Our Maintenance Plan helps you keep your equipment running efficiently for the full extent of its lifespan, can prevent costly repairs with early diagnosis, and includes several service benefits for our plan members. We’re here to take care of your equipment so you don’t have to worry about it.
Maintenance PlansWith Salt Lake Valley hard water, we recommend descaling at least once a year. Homes with very hard water, heavy hot water use or no water softener may benefit from more frequent service. Ask about adding it to one of our maintenance plans.
Often it cannot. Whole-home tankless units need much more gas at full fire than a tank water heater, so the line may need to be upsized from the meter or a nearby trunk. We check pipe size, length and the other gas appliances in your home before recommending a unit.
It will not run out the way a tank does, but it can only heat so many gallons per minute. In winter, when incoming water is colder, that flow rate drops. We size the unit for the number of fixtures you are likely to run at the same time so it keeps up year-round.
Common causes include scale buildup on the heat exchanger, a clogged inlet filter, low flow at the fixture, an undersized gas line or a venting problem. Many of these show up as error codes, and a descaling or gas and vent correction often resolves them. We diagnose the cause before replacing any parts.
It depends on your household. Tankless units save space and deliver continuous hot water, but they cost more to install and need yearly maintenance. A tank can be the more practical choice for some homes. We will walk you through both options during your free estimate.
We pride ourselves on affordable service, and that includes designing specials for a little extra off.
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