On Demand Water Heaters
On demand water heaters save money by reducing costs of utility bills. Demand water heaters only heat water when you need it. Keeping large storage tanks of water hot 24/7/365, when hot water is only needed for minutes, is expensive and costly.
Demand water heaters are energy efficient, compact, and practical. Selecting the right one to suit your needs will give you hot water when you need it. Proper sizing of your unit(s) will yield as much hot water as you need. Who doesn’t want these things without the high utility costs of a storage tank water heater?
The LP and NG condensing units made by Noritz are state of the art on demand water heaters. Mary Power on demand water heaters are made in the USA and present the most competitive pricing. A Rinnai demand water heater is a high quality unit manufactured by a company based in Japan.
Waterheaters Were Not Always This Way
The Englishman, Benjamin Maughan, is often credited with the invention of the first water heater, circa 1868. His invention, “The Geyser”, was an instantaneous water heater that heated water with hot gases. Edwin Ruud, an American who immigrated from Norway, is said to have invented the first automatic storage type water heater around 1889. These early prototypes were massive and costly units that paved the way for later mass production.
However, mass production of widely affordable units did not really become standard until the late 1930’s early 1940’s in the USA, first in the cities, and later in the rural areas. By the 1950’s, automatic water heaters became standard throughout most of the USA. The residential standard for a residential automatic water heater was the storage tank water heater from the 1950’s through 2010.
Small On-Demand Water Heater Enters New Era of Popularity in the 2010’s
During the 1980’s, 1990’s, and 00’s, on demand water heaters were a rarity in residential installations. As for residential, these kinds of water heaters were usually only found in the homes of the most energy frugal homeowners with off-grid homes and solar-powered homes.
But tiny on-demand electric water heaters are only now becoming popular. The advancement of digitally controlled electronics has made these kinds of on demand water heaters effective, safe, and 99% efficient. Electric on demand water heaters run about one/third the cost of gas units, and don’t require venting.
However, an electric on demand water heater may require an upgrade to one’s electric system. So then even though these units can be highly cost-efficient and energy efficient, their energy efficiency is measured within electric standards, not gas efficiency standards. Not surprisingly, the equations used for factor (EF) don’t offer a useful conversion between differing energy sources. So then 99% efficient electric unit does not necessary mean less energy costs than an 82% efficient propane water heater.
Nevertheless, a gas on-demand water heater, whether natural gas (NG) or propane(LP) remains more cost effective and more energy efficient in terms of energy costs than an electric unit.
Gas And Electric On Demand Water Heaters Surpass Storage Water Heaters
Best Propane Tankless Water Heaters are condensing type water heaters. Condensing units are also available with natural gas demand water heaters. Condensing units recirculate heated exhaust vent air back into the heat exchanger system to augment the efficiency of these units.
On Demand Water Heaters Lower Costs Of Electricity And Gas
It is not just on-demand water heater reviews that claim on demand water heaters produce lower utility bills. Electric and gas bills themselves demonstrate the lower costs of electricity and gas to one’s monthly budget. Even though storage units have dominated the past eighty years of water heating systems in the USA, high energy costs combined with advanced technologies in on demand water heaters are rapidly establishing on demand water heaters as the first choice in residential and commercial installations.