82 degrees is just a touch on the high side for Betta fish, they like 76-80, but a few degrees here and there should not harm them. The most important thing to do is keep the temperature even, ie there should not be any large spikes in temperature, particularly when doing water changes. There is a dial to adjust the temperature, there should be some markings on it to tell you what it is set to. If you take the heater out of the tank to look at it, make sure to unplug it first. Most heaters are not designed to operate in the air.

The Most Common Heating And Furnace Problems. There are literally hundreds of reason why your home's heating system or furnace may need to be repaired. However, some are more common than others. Below is a list of the five most common reasons your furnace or heating system may need to be repaired.