If you have a heat pump, you may think refrigerant is only needed for cooling. Surprisingly, it is also needed for the heating! If you have a leak in your system, or you know your system is low in refrigerant, you may want to consider system replacement, especially if your system takes R22 refrigerant! R22 is now obsolete and not available. If you are interested in a system replacement, call us at 410-636-7614 or email us at email@example.com to set up a free estimate appointment!