Proper Heat Strip Management

Stops a heat pump from blowing cold air when it's really cold outside.

Like a cruise control for your heat pump^SM.

This is all it takes to stop chilly drafts from your floor vents.

Quickly installs in the thermostat wiring.

• No adjustment required; just install the controller module inside the furnace and wire in the temperature sensor to the controller and the line to the room thermostat, and forget it.
  
  
• No extra adjustable thermostat is required.
  
  
• Does not affect the adjustment or operation of the existing thermostat.
  
  
• Available to homeowners, A/C service providers and installers, wholesalers and manufacturers.
  
  
• Proven and Patented.
  
  
• For any Air-to-Air (not water to air) heat pump.
  
  
• Does not increase heating costs.
  
  
• The Heating Unit Control System should be installed by a qualified professional; professional installation is usually available for less than $100.00.

The Story Behind This Product
By Don Raley, inventor

I conceived of the Heatpump Comfort Control [now called Heating Unit Control System] as a consequence of my 35 years of experience in working as an air conditioning and refrigeration technician.  Specifically, as a proponent of heatpumps, I wanted to develop some means of quelling the leading customer complaint with such systems -- their tendency to operate continually and blow lukewarm or "cold" air during periods of cold weather. I reasoned that a modified outdoor thermostat could be used to achieve this goal, thereby leading me to develop the design of the Heatpump Comfort Control.  I tested the system in the field with the permission of some 25 heatpump owners without them knowing what I was doing, only seeing the results and being happy with that results. After my seeing how pleased people were with the operation of their heatpumps with the Heatpump Comfort Control on them, I decided it was worth spending the money to get it patented so it could be sold to the public.  I want to introduce the control to you by first saying that it doesn't change the heatpump's operation. It only manages the heat strip in a way that you get the maximum comfort out of your heat pump.

Here is a brief explanation of how it works and why it increases the comfort in your home:

The outdoor thermostat is attached to the outdoor coil and is set to close at a temperature of 25 degrees F or below if so desired.  It works in conjunction with a 24 VAC relay to energize the heat strips on a call for 2nd stage heat if the coil thermostat is closed, and keep the strips on until the thermostat 1st stage heat is satisfied, so that the thermostat can turn the heatpump off as well as the strip heaters. Therefore, the heat pump doesn't run all day with the heat strips cutting on and off on 2nd stage heat signal therefore causing the heat pump to blow cold air while the strips are off.

To illustrate, let's say the temperature outside has dropped enough that when the thermostat 1st stage heat calls, the temperature in the house continues to drop until the 2nd stage heat is called for, then it may be advantageous for the heat strips to stay on until 1st stage heat is satisfied and turns off the heatpump, because by then the E.E.R. may have dropped very low.  Therefore, it would not be a waste of electricity to have the heat strips stay on, and it would give the homeowner the comfort they expected when they bought their heat pump, and would have given them the efficiency they want as well.

I want to thank you for your time and consideration of this subject, and let you know I would be glad to discuss the matter with you and answer any questions you may have.  I am looking forward to doing business with you.

Thank you,

Donald Raley