|
|
|
|
 AHS Model Products
The map in this illustration gives a general idea of the incoming water temperatures throughout the United States. It is important to research out your area and get the coldest known water temperature expected in the winter for computing your hot water needs. A Marvel of Technology and Up to 15% More EfficientAmerican Heat AH Technology
Three choices you must make in selecting a tankless hot water heater for your home or business:
Use the Heat Rise/Flow Rate Chart to help get a general idea of the size unit required. Use the coldest water temperature known for your area in the Winter. Also, consider using a desired flow rate of around 3 gallons per minute (GPM). A more powerful American Heat AHS Model will offer more heat thus more flow rate for your home.
AHS Tankless Features
We recommend a sub-panel and Sediment Filter Kit that can be purchased and shipped to you. Click Here for more information Use a Siemens Subpanel and appropriate Siemens breakers for use with your new tankless heater. Call us at 877-229-1191 to order We also suggest using a Sediment Filter Kit to protect your new tankless from debris, sand and any metal particles that you normally find in water supplies. The manufacturer also recommends this in their Installation Manual. This can be purchase directly from us and shipped with your new unit. Call us at 877-229-1191
Model Selector
How Big of a American Heat AHS Model Tankless do You Need? If you know how many gallons per minute you need with the chart supplied for the various items in your home then use the following simple formula: * Heat Rise X 147 X GPM / 1000 = Tankless Heater Sized in Kilowatts Heat Rise = Temperature of your incoming water minus the temperature of hot water needed 147 = watts of power to raise one gallon of water one degree Farenheit GPM = Gallons per Minute Divide the Products of these numbers by 1000 Put your calculator to the test...For example, if you have 65 degree water and you want 105 degree water then the heat rise needed is 40 degrees. Multiply 40 times 147 and then multiply by the number of gallons per minute you need. Use, say, 3 GPM for a nice flow for a regular bathtub faucet. Divide these numbers by 1000. In this case, 40X147X3/1000=17.64 Now that number rounded up is 18 kilowatts. In this case you could use a piggy-back or tandem two ADK units. One as a pre-warm such as the ADK-3 (6.4 kW) hooked up to a standard ADK-1 (12 kW) to supply the power needed. Or, you could consider using the next series of heaters by choosing an AHS18 unit. Note that if you need 18 kilowatts of power and you buy only a 12 kilowatt unit then you may come up short on those cold Winter days. Our AHS Models we offer are from 16 kilowatts to 27 kilowatts in power. All us 208/220/240 Volts. If you want to compare other tankless water heaters then look for one that is rated 240 Volts and the kilowatt size you need. This formula is simply using the laws of physics of heating hot water on an instantaneous basis. The kilowatt size of an electronic tankless water heater is what you look for when comparing tankless heaters. All tankless water heaters are the same in the end...they heat water. You need to know what size unit you need everytime though or suffer in the winter with less hot water! And, if you like the convenience of pushbutton control in selecting your hot water temperature, then consider our American Heat AHS Models. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
MyTankless@aol.com