Flow
The flow rates for rinnai tankless water heaters are measured in gallons per minute (GPM). MOC varies with the temperature rise required. Raising the temperature refers to the amount of the inlet temperature must be heated to reach the desired temperature. For example, if your incoming temperature is 50 ° F, the increase should be 70 ° F to 120 ° F.
Thus, a tankless heater may have a flow of 7.4 GPM with a temperature rise of 45 ° F or 4.3 GPM with a temperature rise of 77 ° F. To be considered a water heater energy star, the minimum flow with a temperature rise of 77 ° F must be at least 2.4 GPM.
Warranty
Most tankless units offer two separate guarantees, one for the heat exchanger and another for parts. To be considered a water heater energy star, heating has to offer at least a 10 year warranty on the heat exchanger and a 5 year warranty on parts.
Although this is the minimum guarantee required, many models offer a guarantee of 12 or even 15 years on the heat exchanger. Now, the security is independent of the average life expectancy of the model, which is usually 20 years or more.
These are just some of the qualifications for a water heater Energy Star. Several models of tankless water heaters on the market that exceed these requirements. So make sure you take your time looking for one that not only meets your needs but is also Energy Star certified.
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понедельник, 10 января 2011 г.
Energy Star Water Heater : Part 1
There are several titan tankless water heaters on the market. Each model can vary significantly on several factors, including energy efficiency, the maximum throughput and guarantee. When choosing a water heater Energy Star qualified, you can ensure that you are getting a tankless water heater that is high quality and energy efficient.
Unfortunately, not all tankless units qualify for the Energy Star standard. To be eligible, tankless water heaters must meet certain minimum requirements. So what are the qualifications for a water heater Energy Star? Well, there are actually several, but here is a list of the most important.
Energy Factor
The U.S. department of energy yield of a water heater by determining the energy factor (EF). The energy factor determines the efficiency. So, the higher the energy factor, the more effective it will be.
factors can vary considerably in energy between the different models. Most average between 0.60 to 0.90 RU. To be considered a water heater energy Star, tankless water heaters must have a minimum energy factor of 0.82EF.
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Eemax SP3512
Rheem GT 199 PVP-1
Unfortunately, not all tankless units qualify for the Energy Star standard. To be eligible, tankless water heaters must meet certain minimum requirements. So what are the qualifications for a water heater Energy Star? Well, there are actually several, but here is a list of the most important.
Energy Factor
The U.S. department of energy yield of a water heater by determining the energy factor (EF). The energy factor determines the efficiency. So, the higher the energy factor, the more effective it will be.
factors can vary considerably in energy between the different models. Most average between 0.60 to 0.90 RU. To be considered a water heater energy Star, tankless water heaters must have a minimum energy factor of 0.82EF.
Read also
Eemax SP3512
Rheem GT 199 PVP-1
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