Electric Tankless Hot Water Heaters

Hot water heating system

2009-09-10T01:20:00.001-07:00

Hot water heating system

The warm water tends to flow upward and cold water flow downward trend. The amount of flow and return are therefore essential for the proper functionality. The low differential pressure in the system requirements increased dimensions of pipes and valves. Gravity is also a relatively low heat output due to low temperatures in the central heating.

The gravity system is simple, but less for hot water system.

With a return reversed direction of the length of the supply and return pipes to the radiators are more or less the same. This makes it easier to choose the correct pipe dimension to balance the flow.

The expansion of water (4.7% of 0oC to 100oC) can be collected in an open expansion tank with the rest of the system or in a sealed container under pressure close to the boiler and safety valves. In modern systems, the tanks are closed preferred. Repairing a hot water system

Type of hot water system is very different, so if you are unsure of the correct maintenance of the system, it is a good idea, a service person for you. With regular maintenance, these systems will function almost hassle free. If problems arise, there are a few things you can. With a steam system, hammering noise can occur if the radiator is not easy tilted. Place small shims under one end to the slope of the radiator to drain.

When the inlet pressure valve leaks should the offender is usually a worn valve stem packing. This includes repair of the water drains into the system until they are under the valve and the dismantling of the valve and replacing the seal (which is very similar to a rooster). If you do not know how to get water from the canal system, a plumber or radiant water heating service person.

Passive solar energy heating system, water heaters

Passive solar energy heating system, water heating on the gravity and the tendency for water to naturally circulate as it is heated. Because they have no electrical components, passive systems are generally more reliable and easier to administer, and may have more life than active systems. The two most popular types of passive systems are:

1. Integral-collectors storage systems consisting of one or more tanks in an insulated box with a glazed side of the sun. The solar panels are ideal for areas where temperatures rarely go below freezing. They are also good in households with significant daytime and evening hot water heating system needs, but they do not work well in households with predominantly morning draws they lose because most of the collected energy overnight.

2. Thermo syphon is an economic and reliable choice, especially in new houses. These heating system are based on natural convection of warm water to circulate water through the collectors and the tank (the collector). Like water in the collector heats, it becomes lighter and rises naturally into the idea. Meanwhile, the cooler water flow pipes on the underside of collectors, improvement of traffic. Some manufacturers in the storage house in the attic, hiding it from view. Indirect thermo syphon (with a glycol fluid in the collector circuit) can be used in freeze-prone climates if the piping in absolute space is adequately protected. Learn more about freeze-protected piping and research at the National Renewable Energy Laboratory.

Selecting a Tankless Water Heater

2009-09-08T00:03:00.000-07:00

Selecting a Tankless Water Heater

Fuel Type

The first thing that you'll need to decide when selecting a Tankless Water Heater is the fuel type. You will need to select between an Electric Tankless Water Heater (like Eemax Tankless Hot Water Heaters or Siebel Elton Tankless Water Heater) or a Gas-Fired Tankless Water Heater (like Rheum Tankless Hot Water Heaters). Fuel Choice and Sizing

Fuel Options

The most efficient systems available are generally gas-fired. If you currently have an oil-fired boiler, your best options are to purchase in indirect tank that connects to your boiler or an integrated unit that provides space heat and hot water in one. Electric water heaters are not recommended.

If you currently have an electric water heater and natural gas is available in your area, a switch might save you a lot of money. Even though electric models have a higher energy factor than fuel-burning models, electric resistance is a very expensive way to generate heat. It does not have great environmental benefits either, since electricity is only as clean and efficient as the fuel (often coal) that generates it. Before you rule out electricity, though, check with your utility company. It may offer special off-peak rates or options for purchasing renewable power that may make electricity a more attractive option for you.

Sizing a Water Heater (hot water furnace)

The capacity of a water heater is an important consideration. The water heater should provide enough hot water at the busiest time of the day. For a storage water heater, this capacity is indicated by its "first hour rating," which accounts for the effects of tank size and the speed by which cold water is heated. First hour rating is included in product literature and on the Energy Guide label alongside efficiency rating. To determine your family’s first hour rating, use the Peak Water Demand Worksheet

For tankless heater, solar and indirect water heaters, sizing requires a few other calculations that your installation contractor can help you with.

Tankless Heater Installation and Maintenance

Problem: Not enough hot water or water temperature too low.

When the top of the tank is hot the upper thermostat removes power from the upper heating element and transfers the power to the lower thermostat and heating element. If the lower thermostat is defective, then the lower portion of the tank will not be heated and the supply will be greatly reduced.

Check for power at the upper thermostat terminals where the power is sent to the lower thermostat and heating element. If there is no power then the upper thermostat should be replaced. If there is power then check for power at the lower heating element. If there is no power at the lower heating element then replace the lower thermostat.

If there is power to the lower heating element then it should be getting hot. If it is not, replace it. Another possibility is a broken dip tube. Check for a broken dip tube and replace if necessary.

Problem: Water is too hot.

A likely cause is one of the thermostats. Check for power at the top heating element. If power is present at the top heating element, the top thermostat is defective. If power is present at the lower heating element then the lower thermostat is defective. Another possible cause is if the thermostats are not pushed firmly against the tank.

How do Tankless Water Heaters work?

2009-09-06T21:58:00.000-07:00

How do Tankless Water Heaters work?

Tankless Water Heater directly without the use of a storage tank. Therefore, they avoid the standby heat losses associated with storage water heaters. When a hot water tap is turned on, cold water travels through a pipe into the unit. In an electric Tankless Water Heater an electric element heats the water. In a gas-fired Tankless Water Heater a gas burner heats the water. As a result, Tankless Water Heaters deliver a constant supply of hot water. You don't need to wait for a storage tank to fill up with enough hot water.

Typically, Tankless Heater provides hot water at a rate of 2 – 5 gallons (7.6 – 15.2 liters) per minute. Typically, gas-fired Tankless Water Heaters will produce higher flow rates than electric Tankless Water Heaters. Some smaller Tankless Water Heaters, however, cannot supply enough hot water for simultaneous, multiple uses in large households. For example, taking a shower and running the dishwasher at the same time can stretch a Tankless Heater to its limit. To overcome this problem, you can install whole house” type Tankless hot water heaters or install two or more Tankless Water Heaters, connected in parallel for simultaneous demands of hot water furnace.

You can also install separate Tankless Heater for appliances—such as a clothes washer or dishwater—that use a lot of hot water in your home.

Storage Water Heaters

These are by far the most common type of water heater in the U.S. today. Ranging in size from 20 to 80 gallons and fueled by electricity, natural gas, propane, or oil, storage water heaters transfer heat from a burner or coil to water in an insulated tank. Because heat is lost through the flue and through the walls of the storage tank, energy is consumed even when no hot water is being used.

Tankless hot water heaters Eliminates the Hassles

GE also has a solution for consumers who use gas water-heating systems. The new Tankless Water Heater provides hot water while using less energy than a standard-tank gas water heater because it only activates when you need hot water and it immediately de-activates when you turn off the water. This demand-activated technology allows users to receive a continuous supply of hot water furnace.

Electric tankless trouble shooting & repair guide

This guide assumes that the hot water heaters were properly installed and were operating correctly before any problems developed.

Most Electric tankless have two thermostats, one near the top of the tank and one near the bottom, and are covered by removable metal cover plates. The thermostats are pressed firmly against the bare metal wall of the tankless water heater.

The top thermostat usually has a high limit switch that will trip if the water gets too hot. When it trips it shuts off the electricity to both the upper and lower heating elements.

To reset the high limit switch there is usually a red button that you must press. When the upper limit switch trips it is often an indication that something else has gone wrong with the heater.

Demand-activated technology also translates into significant energy savings. A GE tankless gas water heater could help homeowners save up to 25 percent annually on water heating costs compared to the operating costs of a standard 40-gallon-tank gas water heater.

Electric Tankless Hot Water Heaters

2009-08-19T08:37:00.000-07:00

Electric Tankless Hot Water Heaters

Stiegel Elton Tankless hot water heaters are proof that not all Tankless heater are the same! We offer a full line of Stiegel Elton electric tank-less water heaters for point-to-use, whole-house and commercial applications, including the flagship and Tempera plus Series, equipped with an advanced micro-processor temperature and power flow modulation technology. The Stiegel Elton Tempera Plus series and tankless water heater models can fully compensate for changes in incoming water temperature and flow rate to a precise temperature output. Many competitors advertise that they are consistent with thermostatic control and power modulation technology, but in reality they were simply not true. Tankless hot water produced "Cadillac" of the tank-less water heaters. Each heating we manufacture hand-built and tested to last over 100,000 operations. They have a luxurious, endless supply of hot water furnace that costs less to use!

Stop money! An electric tankless hot water heaters, with one of the highest efficiency in the industry save water and electricity bills. It is environmentally friendly, with significant energy savings. It is also less space, which means that you have a cabinet or other much-needed space.

Moreover, state-of-the-art tankless water heating would be the last water heater you'll ever need to buy! We have a 20-year-old heating in the area that was equipped with an on-site service calls and now have a new heating system warranty.

Heat only the water you need when you need it! Replace the tankless hot water today with a new, less reliable tank system. It's easy! We will help you find a competent plumber in your area and for any questions before or after the purchase of your electric tankless.

A tankless heater can be anywhere. Tankless water heater can replace conventional tank-type water heater and many other applications. Our systems are in thousands of homes and businesses at home and abroad, including the Smithsonian Institute, the White House guard hut, and research vessels on the sea! We provide high performance, top-quality commercial, whole house, point-of-use, pool and spa, and backbreakers radiant floor heaters. Our instant electric water heaters do not store the hot water tank, as it is affected by the device, so that potential savings of between 30% to 50% discount on your water heating costs compared to a storage water heater not to mention the space under the compact size. Our tank less water heater does not need pressure-relief valves as is the case with all water heater and storage tanks; because they are electric tankless there is no need for venting such as propane or natural gas plants, conventional or instantaneous values. No need for CARBON MONOXIDE detectors to ensure that your family security. There is no tank of heated water to radiate heat to the environment. No waste of valuable space. All parts are repaired or replaced. The Hubbell tankless water heater is the most efficient electric tankless water heater in the world and has its reliability for years!