heat pump and aux heat run simultaneously

Some heat pumps also have auxiliary heat, an additional stage of heating that is typically used when the heat pump compressor can’t keep up with cold weather conditions. In other words the indoor coil can reject heat into the return air stream. Knowing the difference between your heat pump’s auxiliary heat and emergency heat will help address the question from above. If your heat pump is constantly running, there are likely three main causes: Unusually cold weather: Heat pumps are designed to work much more gradually than a furnace. They will both be running when the need for auxiliary heat is there. The compressor is what drives … Electricity is inherently less energy efficient than running the HP. So in cold temperatures, the heat pump runs non stop to maximize your cheap heat but your home may remain a degree or two below your thermostat … Aux heat comes from the same heat source as emergency heat, but aux heat works together with your heat pump, so it’s less expensive than emergency heat. Ask Our Pros-Owner Assistance - NO DIY advice will be given. For example, if you live in an area with long, cold winters, a heat pump will run more than in temperate climates. This applies to a heat pump with electric back up heat. The #1 question asked by NEW MEMBERS. Make sure that your thermostat is properly paired with your heat pump. Well if you don’t have gas then what is your auxiliary heat? Allow Heat Pump/Auxiliary Heat to Run Simultaneously: If you select Yes and there is a source of auxiliary heat, both auxiliary heat and heat pump will turn … The primary (1st) stage is the heat pump itself. Meanwhile the heat pump has been running non-stop throughout this time to maximize the cheap heat. Allow heat pump and auxiliary to run simultaneously? The system is designed so that both can operate simultaneously. EM heat is NOT the same thing as AUX heat: AUX heat signifies that your heat pump has automatically switched over to backup heating because temperatures are too low. Typically, your heat pump will energize the auxiliary heat strip inside your secondary heating source to help reach its set temperature more quickly. Once it gets close to the actual setpoint, the aux heat de-energizes and the heat pump mode of the system remains operating to generate heat and will shut off if the temperature is satisfied. I chose disable because it sounds safer. What this means, unfortunately, is that it’s more expensive than the conventional heat provided by a heat pump. Scenario 1 – Cool Air Blowing from Registers. However, when the outside temperature is 32° F or below, your auxiliary heat will usually turn on automatically. Compared to heat from the heat pump (COP 2.0 or 2.5) the auxiliary heat (COP 1.0) is quite expensive. A heat pump is usually powered by electricity, although there are heat pumps that run on natural gas, propane, or even solar or geothermal heated water but those are not found in residential use. The ecobee asked this cause it assumes you have aux heat, is it electric? I don’t have gas and I’m in south Louisiana where it doesn’t get crazy cold, if that helps? Difference Between Auxiliary Heat and Emergency Heat. It’s possible that, if the weather is especially cold, your heat pump could run near-constantly without there being an issue. There … Actually this is not the case. First off, AUX heat refers to your heat pump’s auxiliary (backup) heat source. Pumped heat. EM heat is an option on your thermostat that you can manually turn on to activate backup heating. They also support several stages of heating and cooling and can run the heat pump and auxiliary heat simultaneously to maximize comfort and reduce overall energy costs. Because consumers have many more auxiliary heat options to work with for augmenting heat pumps, this allows them to experience a winter or two in a milder climate zone without the feature before committing to the extra investment, whichever one it may be. 3. If utilizing a fossil fuel auxiliary heat system, set to Gas or Oil Furnace. This is set at a default 35F (1.7C), so the heatpump will not be used when the weather outside is below 35 degrees Fahrenheit and only aux heat will be used in this case. Your thermostat is calling for a high temperature increase (2–4°F) The heat pump is in defrost mode. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. To start, the job of a heat pump is to take air from the outside your house, warm it and then blow it throughout the different parts of your home. It is the ratio of heat produced to the amount of energy required to run the system. 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The auxiliary heat pump should run more often when the temperatures outside dip below freezing. Traditionally, almost everyone has considered the heat pump to be a poor candidate for night setback. Allow heat pump and auxiliary to run simultaneously? NO HEAT – The space temperature drops more than 3 degrees below the thermostat's heating setpoint.. This is because your outdoor heat pump will have a more difficult time creating enough warm air to heat your home. Auxiliary heat is less energy-efficient than your heat pump, and it is meant to only run for short periods of time when temperatures drop. This setting should be used only if there is something wrong with your heat pump, and even then, only as a short-term fix until you can have the system repaired. Components – Coils, Heaters, Motors, etc. Yes, I am all electric so I should enable it? This is the heat you get when the compressor runs. Your auxiliary heat supplements your heat pump’s heat––it doesn’t replace it. I have a Lennox unit and my ecobee4 asked me if I wanted to allow the heat pump and auxiliary to run simultaneously? Press question mark to learn the rest of the keyboard shortcuts. It’s normal for your heat pump to switch to AUX heat when…...The temperature outside is below 35° Usually, once outdoor temperatures fall below 35°, a heat pump will struggle to keep your home warm and will automatically switch to AUX heat. Letting the heat strips run all winter might keep you cozy, but it definitely has the potential to put a chill on your finances. Heat pump running constantly in winter. Heat pump and heat strips on simultaneously? AUX heat mode is normal when: The temperature outside is below freezing. Question. They will work in tandem when the temperatures drop to those cold numbers. The reason for this is that a heat pump does a very good job of maintaining temperature, but is very poor at recovering temperature. Was that right? 1In heat pump mode, this system setting is also the auxiliary heat setting. That’s just how the heat pump … Posted by 2 years ago. Before you call for service, make sure the heat pump isn’t accidentally set to a/c mode, and that the set temperature is correctly set at the thermostat. Participate in over 40 different forums and search/browse from nearly 3 million posts. Heat pump running constantly. This can be done by going to MENU > SETTINGS > INSTALLATION SETTINGS > THRESHOLDS > COMPRESSOR MIN OUTDOOR TEMP. 0. Prolonged use of aux heat can cause your … As long as the HP is producing some heat, it's more efficient to use the HP for whatever Btu's you can garner and allow the aux heat to be just that, auxiliary rather than primary. Systems with two stage cooling or a heat pump will have wires in the Y1 and Y2 connectors. Press J to jump to the feed. New comments cannot be posted and votes cannot be cast. If your heat pump seems to be stuck on auxiliary heat mode and the temperatures outside are above 35 degrees, you should call the professionals at Precision Heating & Air. That will consume more energy and put out less heat, potentially leading to a much higher utility bill. 2. This is thought to be because of the need to use electric strip heat to return to the day setting in the morning. This wire is usually found in the W2/AUX connector on your thermostat. Our 20th year anniversary is May 21, 2020. You might notice your heat pump runs constantly in cold weather. For better energy efficiency and comfort, change this setting to “Run heat pump and auxiliary heat simultaneously.” This way your auxiliary heat will supplement your heat pump rather than replacing it when the temperatures drop outside. A subreddit for ecobee and all their smart home products. However, I don't understand why you have a heat pump as primary heat. This is allowable because the indoor coil (condenser in the heating mode) is upstream of the AUX heating elements. A heat pump has two stages of heat. Post photos, respond to polls and access other special features. As we mentioned above, heat pumps absorb heat from the outdoor air and then move that heat indoors. Most heat pump thermostats bring on the back up heat when the temperature difference between the room and that thermostat setting is 3 degrees or more. No-frills heat pump systems without the auxiliary heat capability sometimes make that feature an add-later option. Close. Yes... we are 20 years old. COP: COP or Co-efficient Of Performance is a way of describing a heat pump's efficiency. Switching to the emergency heat setting forces your heat pump to bypass the method it typically uses to produce warm air and instead rely solely on heat produced by the heat strip coils. The home temperature raises to a point just short of the thermostat set point and then the auxiliary heat turns off as soon as possible. Furnaces are powered by electricity, but they still use use natural gas a fuel source. Question. Heat Pump Stuck in Aux Heat Mode. Auxiliary heat kicks on when your heat pump can’t produce enough heat to warm your home by itself. If YOU want change, YOU have to first change. Most “smart thermostats” are also designed to work with common heat pump configurations. Having both heat sources running is not a bad thing - it’s for those really cold days where it knows your primary heating source won’t cut it so it needs supplemental heat. If you are looking for peace-of-mind, be sure your installation technician provides a limited warranty for their work and is qualified, experienced and recommended by a trusted source. I have a Lennox unit and my ecobee4 asked me if I wanted to allow the heat pump and auxiliary to run simultaneously? The same goes for warmer climates. In this setting, the heat pump will lock out before the fossil fuel auxiliary heat comes on; eliminating the need for a dual fuel kit. Accessories – Pumps, Cooling Towers, Evap Condensers, etc, Components – Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Welcome from the Editor & Electrical Forum Rules, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. That's why it is called auxiliary heat it supplements the primary heat. I chose disable because it sounds safer. Another reason you may see the auxiliary/emergency heat come on is when it is unusually cold outside for an extended time. Homeowners who notice their auxiliary heat rise as the temperatures drop may not have a … Archived. 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