The right thermostat for you depends on your heating and cooling system and how much control you want over your energy bills. Most modern homes use digital or smart thermostats, which offer superior convenience, remote access, and scheduling compared to older analog dial models.
Yes, 72°F is a very comfortable temperature for your daytime heat setting. However, it is slightly higher than the recommended energy-saving guidelines, which could increase your heating bill.
Lennox systems fall into two main categories: communicating systems (Lennox S40, S30, and iComfort) and standard/conventional systems. Communicating systems usually require a Lennox proprietary thermostat to unlock advanced diagnostics and efficiency, while standard systems can work with any universal thermostat like Nest or Ecobee.
Millivolt thermostats are the most common type used for gas fireplaces while 24 volt thermostats are common for furnaces or boilers. When the room temperature falls below the thermostat's set temperature, the IPI module triggers the gas fireplace to ignite, increasing the heat output.
No, you cannot replace your thermostat with any thermostat. The compatibility of a new thermostat depends on your home’s specific heating and cooling setup. Most homes use standard low-voltage (24VAC) systems, but some use high-voltage, millivolt, or proprietary communication systems.
To determine if a thermostat is compatible, remove your current thermostat's faceplate and note the letters of the connected wires. Enter this wire configuration into online compatibility tools to see if the thermostat supports your specific HVAC setup (e.g., standard furnace, heat pump, multi-stage, or millivolt).
If you find yourself asking, “How do I install a thermostat if my wiring doesn't match the guide?”, it may be time to bring in a licensed HVAC technician or electrician. A professional can: Verify compatibility with your HVAC system. Run a new C-wire if your system needs one.
Further, most digital thermostats are compatible with most gas fireplaces, so it isn't likely you'll have to worry about a model not working with your fireplace.
A plumber isn't usually needed for thermostat replacement unless your thermostat directly controls a water-based heating system, such as underfloor heating or a boiler with complex plumbing connections. Even then, an electrician is typically the right professional to handle the wiring.
Turn off the power to your thermostat before checking the wiring as high voltages can be dangerous and even fatal. You can also look into the gang box of your existing thermostat. If you have black and white wires you likely have 120V. If you have black and red wires you likely have 240V.
No. A replacement thermostat must be compatible with your HVAC system and the wiring where the existing thermostat is. Single-stage, two-stage, and variable-speed systems may not be compatible with all thermostats. An HVAC professional can tell you what thermostats are compatible with your system and wiring.
The new S40 Smart Thermostat is now available!
It takes time for your home to warm up and cool down. If you're not sure how long it takes, try turning the heating on about 30 minutes before you need it. You should turn it off 30 minutes before you'll stop needing it.
While everyone has a different tolerance to cold, ideal winter heat settings should generally be at or above 63 °F (17 °C). Excessive cold (anything below 62 °F or 16 °C) in your home can actually raise your blood pressure as your blood “thickens” in the chilly temperatures.
No, it is generally not cheaper to leave your heating on all day. The most cost-effective method is to only heat your home when you need it.
How can you tell if a thermostat is bad?
So, let's dive in and get your HVAC system up and running again!
Average Lifespan
While the manufacturer's warranty provides some insight, the actual lifespan of a smart thermostat can vary depending on various factors such as usage patterns, environmental conditions, and maintenance. On average, smart thermostats are designed to last between five to ten years.
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So, if you use your gas appliance for 2 hours a day. The total running cost of it would be: 30.36p (cost per hour) x 2 hours (number of hours in use) = 60.72p for 2 hours.
Electricians are your best bet for thermostat replacement, and they charge between $65 and $100 per hour for their labor. In most cases, replacing a thermostat will take 1 to 2 hours, which puts your total labor costs between $65 and $200.
Millivolt thermostats are typically used with a fireplace or gas-fired floor or wall heater that doesn't use electricity. Older systems with pilot lights may use millivolt controls.
Average Cost of Thermostat Replacement
Thermostat Replacement starts at $99.