Hey there, neighbor! Bert Miskell from BPM Heating & Cooling here. Let’s talk about that mysterious “EM Heat” setting on your thermostat. As a local HVAC expert in Frederick, MD, I’ve seen my fair share of confused homeowners when it comes to emergency heat.
What is EM heat?
- A backup heating mode for heat pumps
- Kicks in when primary system can’t keep up
- Uses electric resistance heating elements
- More expensive to run than regular heat pump mode
When should you use EM heat?
- During extremely cold temperatures
- If your outdoor unit is malfunctioning
- When defrosting isn’t working properly
- As a temporary solution until repairs can be made
Heat Pump vs. EM Heat: What’s the Difference?
Heat Pump Mode | EM Heat Mode |
---|---|
Uses outdoor air | Uses electric resistance |
More energy-efficient | Less energy-efficient |
Primary heating method | Backup heating method |
Works well above 35°F | Used in extreme cold |
Remember, while EM Heat can be a lifesaver in emergencies, it’s not meant for everyday use. If you find yourself relying on it frequently, it’s time for a checkup!
Don’t wait for the cold to catch you off guard. Contact BPM Heating & Cooling at (240) 200-0887 or schedule service today. We offer free quotes on new installations and serve both residential and commercial customers in Frederick, MD, and the surrounding areas. Stay warm and cozy this winter with BPM Heating & Cooling!
What is Emergency Heat?
So, what exactly is emergency heat, and how does it work? Let’s take a closer look at how EM heat activates and operates when your primary heat pump struggles to keep up with the cold. We’ll also discuss the steps you can take to engage this backup heating mode when the need arises.
How Does Emergency Heat Work?
Emergency heat, or EM heat, is an essential backup heating mode built into heat pump systems. When the heat pump struggles to maintain a comfortable indoor temperature, especially during extreme cold weather, EM heat automatically activates auxiliary heating sources like electric resistance heaters or gas furnaces. This emergency heat mode bypasses the heat pump’s normal operation, relying solely on the backup heating components to keep your home warm.
While EM heat provides immediate warmth when the primary system can’t keep up, it’s crucial to mention that it’s less efficient than the heat pump’s regular operation. Running on auxiliary heating sources consumes considerably more energy, which can lead to higher utility bills. That’s why it’s best to use EM heat only when necessary, such as during unusually cold weather or when the heat pump malfunctions.
If your thermostat frequently switches to EM heat, it may indicate an underlying issue with your heat pump that requires professional attention. Keep an eye on your thermostat and contact an HVAC technician if you notice prolonged or excessive use of emergency heat mode to guarantee your system is functioning effectively and efficiently.
How to Activate EM Heat
To activate EM Heat, you’ll need to locate the Emergency Heat setting on your thermostat and switch it on manually. Look for a specific light or code on the display that indicates the emergency heat setting is engaged. By activating this mode, you’re bypassing the heat pump and relying solely on the backup heating system, which typically uses electric resistance heat.
Thermostat Type | Emergency Heat Label | Activation Method |
---|---|---|
Digital | EM Heat or Emergency | Button or Switch |
Smart | Emergency Heat | Menu Setting |
Programmable | EM Heat | Button or Switch |
Manual | Emergency Heat | Switch |
Touchscreen | EM Heat or Emergency | Menu Setting |
When to Use Emergency Heat
There are specific situations when you should activate your heat pump’s Emergency Heat (EM Heat) setting. If your primary heating system fails or struggles to maintain the desired temperature, especially in extremely cold temperatures, it’s time to engage the EM heat. This secondary heating source will kick in to guarantee your home stays warm. Other scenarios that warrant using EM heat include:
- Power outages affecting the heat pump
- Waiting for repairs on the primary system
- Exterior temperatures dropping considerably below the heat pump’s efficiency range
However, it’s imperative to use EM heat judiciously. Extended use can lead to higher energy costs, so once your heat pump is operational again, promptly switch off the emergency setting. Monitor your system for unusual noises or consistently low indoor temperatures, as these may indicate the need for EM heat. If you’re unsure, consult with an HVAC professional to determine the best course of action. Remember, EM heat is a temporary solution to keep your home comfortable until the primary heating system is back up and running efficiently.
EM Heat vs. Aux Heat
While both EM Heat and Aux Heat serve to supplement your heat pump, they operate under different circumstances.
- EM heat is a manual setting that activates auxiliary heating sources when your heat pump fails or struggles to maintain the desired temperature. It bypasses the heat pump completely, relying solely on the backup heating system. This can lead to higher energy costs compared to regular heat pump operation, especially if your system is not well-maintained, as noted in essential benefits of maintenance.
- Aux Heat operates automatically during brief temperature drops when the heat pump is still functional but needs additional support. It works in conjunction with the heat pump to maintain a comfortable temperature. Aux Heat typically activates when the temperature difference between the indoor set point and outdoor conditions is small, usually around 2-3°F.
If you find yourself frequently relying on EM heat, it may indicate underlying issues with your heat pump that require professional attention. On the other hand, Aux Heat is a normal part of your heating system’s operation during colder weather and doesn’t necessarily signify a problem.
EM Heat Energy Costs
Activating EM heat can greatly impact your energy bills, as it consumes 2-3 times more energy than standard heat pump operation. To enhance your home heating efficiency and potentially reduce costs, consider implementing some budget-friendly tips that can complement your heating strategy. The cost of running EM Heat averages around $0.13 per hour for heat pump operation, compared to approximately $32.76 for emergency heat over a week. This significant difference highlights the expense associated with relying on auxiliary heating sources during extreme cold or system malfunctions.
Prolonged use of EM heat can lead to escalating energy costs and financial strain. To maintain cost efficiency, you should:
- Monitor your energy bills closely during cold months
- Identify potential overuse of emergency heat
- Adjust your EM Heat usage accordingly
Engaging EM heat only during system failures or extreme cold conditions can help mitigate excessive energy consumption and associated utility bills. By being mindful of when and how long you use emergency heat, you can strike a balance between maintaining a comfortable home environment and managing your energy costs effectively. Regular consultation with HVAC professionals can also provide valuable insights into optimizing your EM Heat usage and minimizing the financial impact on your household.
Heat Pump Emergency Heat: When Does a Heat Pump Switch to Emergency Heat?
When outdoor temperatures plummet, your heat pump may struggle to extract sufficient heat from the chilly air, causing it to switch to emergency heat. This typically occurs when the temperature drops below your heat pump’s efficiency range, preventing it from maintaining your desired indoor temperature. In such cases, your HVAC system will automatically activate emergency heat when the indoor temperature falls 3°F below the set point, relying on auxiliary heating sources like electric resistance heating to keep you warm.
Regular heat pump maintenance can help guarantee your system operates efficiently and reduces the likelihood of needing emergency heat. Emergency heat can also kick in if your heat pump malfunctions or during power outages, assuring you have a reliable backup heat source.
Emergency Heat: Your Home’s Silent Guardian
At BPM Heating & Cooling, we like to think of EM heat as your home’s loyal protector. It’s there when you need it most, ready to jump into action when the cold threatens your comfort. But like any powerful tool, it should be used wisely. As your friendly neighborhood HVAC experts in Frederick, MD, we’re here to help you understand when to activate this champion and how to keep your heat pump running smoothly.
Remember, proper care of your heating system is key to avoiding unexpected costs. Whether you have a heat pump, furnace, geothermal unit, or boiler, our expert technicians are here to help. We offer comprehensive maintenance, repair, and installation services for both residential and commercial customers.
Don’t let heating issues leave you out in the cold. Contact BPM Heating & Cooling today at (240) 200-0887 or visit us at 300 E 4th St Unit A, Frederick, MD 21701. We offer free quotes on all new installations and can schedule service at your convenience.