Mass production of Charmaster Furnaces began in 1972 at their original facility in Grand Rapids, Minnesota. We have furnaces burning in every state except Hawaii. We also ship into Canada and the furnaces are CSA approved.

No. There have been great strides made in increasing the reliability of 90% furnaces. If you purchase a quality furnace AND it is installed properly, you shouldn't see any real difference between the life of an 80% and 90% furnace. See similar questions...

Yes. You can safely use B20 in an oil furnace. We do know people using B100 (100% biodiesel) in their home heating systems without any modifications. You can get B100 delivered for your oil furnace, just check our [Biodiesel Sources] page. If your oil tank is in good condition it should store well. See similar questions...

The efficiency ratings of furnaces is measured in AFUE as a percentage. AFUE stands for Annual Fuel Utilization Efficiency, and it's what furnace manufacturers use to inform us of the efficiency of their equipment. Standard efficiency gas furnaces have efficiency rating of 60% to 70%. Mid-efficiency gas furnaces have an AFUE rating of around 80%. High-efficiency gas furnaces (aka condensing gas furnaces) have efficiency ratings in excess of 90%. See similar questions...

A single stage furnace will deliver the same amount of heat and airflow no matter what the temperature is outside. A 2-stage furnace with a 2-stage thermostat will begin in first stage (low burner, low airflow) and only go to second stage if the indoor temperature drops during first stage. This makes the furnace run longer, providing greater air circulation, temperature distribution, and air filtration. This also provides a more consistent indoor environment. See similar questions...

We'd love to help you out! To obtain information on Massachusetts Venting Requirements, please call 1-800-428-4326 (Bryant Consumer Relations), or click here to contact us and supply your contact information including model and serial number of your furnace. See similar questions...

Natural gas furnaces do burn more cleanly, a real advantage over oil because your chimney will never need cleaning, and there's no power burner and no jet to plug up as with an oil furnace. There could be several reasons, such as quality of the unit or its installation, loose sheet metal, incorrect fan speed, or improper furnace sizing. A physical inspection by a professional heating contractor should reveal the source of the noise in most cases. See similar questions...

Answer: The Gas Dept. will re-light pilot lights when changing out meters or when the City has interrupted service. Repairs to furnaces and water heaters are done only by local heating contractors. See similar questions...

air health will work on all types of warm air furnaces and split unit heat pumps. air health is designed for indoor mounting only. See similar questions...

STEVE: "The best thing you can do is unplug those old furnaces and invest in a quick, clean vacuum induction system. Our new compact induction vacuum furnace will fit right into your manufacturing cell." See similar questions...

While treatment lengths vary somewhat from person to person and from condition to condition, there are a few rules of thumb you can follow. First, newer injuries, if treated appropriately and immediately, tend to respond to fewer visits assuming that major tissue injury has not occurred. Many of these first time injuries can be effectively managed in as little as 3 to 4 visits. See similar questions...

The performance time for each show varies. Our performances usually run 2 1/4 to 2 3/4 hours. Please call the box office to inquire about the running time of the current production. We do not know the running time of future productions. See similar questions...