Hot Water Heating Systems

How Hot Water Systems Work
Boilers heat hot water which is circulated through the facility via a piping system to heating elements located at remote locations. Hot water circulates at temperature up to 180 degrees F. in the heating system. Comfort from hot water based systems can be obtained with a variety of heating elements including radiators and baseboard sections.

Replacement Hot Water Boilers

Existing Boiler Capacity
Heating units are rated in BTU's (British Thermal Units) per hour. The nameplate of the boiler is typically located on the boiler jacket. The nameplate will have two lines with BTU ratings. The larger value will be the boilers input rating, the smaller value will be the boilers output rating. The output rating on the nameplate is the boiler capacity. The difference between the boilers input and output BTU values is related to its operating efficiency.

If a boiler has an input rating of 150,000 BTU/hour and an output rating of 97,500 BTU/hour, it's efficiency rating is 65%. Please see the section below titled "efficiency ratings" for a more detailed explanation of system efficiency

Efficiency Ratings
The U.S. government tests and rates commercial heating appliances. They measure and record the boiler input BTU, output BTU, electrical power usage, flue losses and net combustion efficiency. The result of this rating is an A.F.U.E. (annual fuel utilization efficiency) value. A.F.U.E. is a more sophisticated calculation than the ratio of output to input BTU.

National, State, and Local Safety Codes
Our experienced and licensed staff believes that these codes are a valuable system to ensure systems are installed properly. At Keyes North Atlantic our work always meets or exceeds the code requirements. If you'd like to know more about our licenses and credentials, we welcome you to the Insurance and Licenses portion of our Credentials section.

Insurance
We are fully covered for workers compensation insurance, and we carry two million dollars of general liability insurance. We are happy to forward certificates of insurance coverage to you for your records. Or view them right here in the Insurance and Licenses portion of our Credentials section.

Warranties and Guarantees
We provide a full one-year guarantee on our work, equipment, and materials. This guarantee is provided in addition to the warranties, which the manufacturers provide on the equipment that we install in your facility. Click here for more information on our workmanship warranty.