Time for a tankless water heater?
We fill up big 40, 50, 75-gallon water heater storage tank, then pour energy into them 24/7 to make sure we have hot water when wanted, at least if we don’t empty the tank with long showers or baths. Not true with a tankless instantaneous water heater.
You spend $400-$600 each year to heat a hot water storage tank. That’s the 2nd largest expense of 14-18% from your utility bills.
Nagging worries remain with your existing tank water heater: Will we run out of hot water? Is hard water filling the tank with energy-robbing sediment? Will the tank spring a leak soon? All are reasonable concerns, as tanks generally fail in 8 to 15 years especially if you have an annual maintenance plan.
All the hot water you need, as long as you need it.
Energy.gov reports homes that use 41 gallons or less of hot water daily, demand water heaters can be 24%–34% more energy efficient than conventional storage tank water heaters. Tankless can be 8%–14% more energy efficient for homes that use a lot of hot water — around 86 gallons per day. You can achieve even greater energy savings of 27%–50% if you install a tankless demand water heater at each hot water outlet.
Tankless water heaters can provide hot water at a rate of 2–5 gallons per minute. Gas-fired tankless water heaters produce higher flow rates than electric ones. And if you need hot water for simultaneous, multiple uses in large households or commercial use you can install two or more tankless water heaters, connected in parallel for simultaneous demands of hot water.
Tank water heaters have grown bigger as federal regulations now require thicker insulation to reduce standby heat loss. Tankless gas heaters are about the size of a suitcase and hang on the wall.
Tankless Is Safer
They won’t spring a leak and cause a real mess like a tank heater does, or harbor Legionella bacteria. Air-supply and exhaust vents are sealed meaning poisonous carbon monoxide won’t enter your home due to backdrafting.
Nothing reduces water heater efficiency and life more than hard water mineral scale. Scale won’t be an issue if you already have whole-house water-softening. But if your water hardness exceeds 7 grains per gallon, then it’s worth investing in a treatment system like a softener, filter or a point-of-use cartridge water conditioner to alter hardness. If not then every year or so (or 500 hours of use) the system should be flushed with vinegar to remove scale build up on expensive heating components.
Electric tankless water heater
One drawback to electric units is the output, which tops out at 36 kilowatts, or about 123,000 Btus. Electric tankless heats water with thick copper rods, are quieter and about a third smaller than gas units. And because they don’t need vents, they can be installed almost anywhere, including under sinks and in small closets. Electric heaters last half as long as gas units: Typical warranties are three to five years.
Adjust the temperature and monitor gas and hot-water usage on your phone and identify the source of a problem.
Vacation time? No worry of a tank leak. Takes a few seconds to drain; then turn gas or electric off.
A quality tank water heater install can be $1400 to $3000 depending on size, efficiency and type. A whole home tankless investment can be $4,000 to $6,000. Given tankless can last 2 or 3 times longer and lower utility bills around $100 a year, the higher upfront costs makes sense. Add space saving design, unlimited hot water, no tank leaks and a tankless water heater makes economical and environmental sense.
PDM Plumbing, Heating, Cooling Since 1885
If you’d like an exact price (low financing available) we’d be happy to stop by for a free evaluation of your hot water system. The PDM Clean Team has offered service on tank and tankless water heaters in Joliet-SW Chicago Suburbs for 135 years.7 Air Purification Ideas » « Smart Toilet Cleansing Seat