Wiring a heat pump thermostat: what the o and b terminals mean and how it differs from a furnace
Wiring a heat pump thermostat requires connecting the O terminal to the reversing valve and the B terminal to the compressor.
C wire thermostat: what the common wire does, how to check for one and how to add power without it
A c wire thermostat uses a common wire to provide a continuous 24V power supply from your HVAC system to the device.
Floor heating thermostat: why radiant floors need a floor sensor and how to set one without overheating the room
A floor heating thermostat requires a floor sensor to measure the temperature of the subfloor rather than the air.
4 wire thermostat: which wires carry power, heat, cooling and fan and how to match them to the thermostat
A 4 wire thermostat uses the R wire for power, W for heat, Y for cooling, and G for the fan. This configuration requires a common wire to power the device.
Boiler thermostat: how it controls hot water or steam heat and what differs from a forced air thermostat
A boiler thermostat is a switch that activates a boiler to circulate hot water or steam through pipes.
Plug in thermostat: how a plug in controller works for a space heater or fan and what loads it handles
A plug-in thermostat is an inline switch that opens or closes a circuit based on sensed temperatures.
Alexa smart thermostat: what voice commands cover, how setup works and what Alexa cannot adjust
An Alexa smart thermostat responds to commands for temperature adjustments, mode changes, and status inquiries.
Non programmable thermostat: how a basic dial or digital thermostat works and when it is enough
A non programmable thermostat is a mechanical or digital switch that maintains a set temperature by completing a circuit to trigger your heating or cooling system.
Smart versus programmable thermostat: what each learns, saves and costs you in daily effort
A smart programmable thermostat is a device that automates schedules through machine learning or manual remote input.
Spray foam insulation: how open cell and closed cell foam work and where each belongs in a house
Spray foam insulation functions by expanding into a liquid that hardens into a solid foam.
Attic insulation: how much you need, what types exist and why it is the first place to look for savings
Attic insulation requirements are determined by the local climate zone and the specific R-value standard for your region.
Wall insulation: how it works in new and existing walls and which options suit each situation
Wall insulation works by creating a thermal barrier that slows heat transfer through building materials.
Window insulation: ways to stop drafts and heat loss without replacing the windows
Window insulation is achieved by applying secondary barriers like shrink film or weatherstripping to existing frames.
Foam board insulation: what rigid panels are, the types and where in a house they work well
Foam board insulation is a rigid, cellular material that traps air to resist heat flow.
Spray foam insulation kits: what a DIY kit can seal and when the job is better left to a pro
A spray foam insulation kit is for sealing small gaps, cracks, and holes in your home’s envelope.
Blown in insulation: how loose fill goes into an attic or wall and when it beats batts
Blown-in insulation is delivered through a high-powered blower machine that forces loose material into cavities.
Window insulation kit: how shrink film seals a drafty window for winter and how to put it up
A window insulation kit creates an airtight barrier by using heat to shrink a plastic film tight against the window frame.
Crawl space insulation: whether to insulate the walls or the floor above and how to control moisture
Crawl space insulation is most effective when installed on the walls and ceiling of the crawl space itself. This applies to homes with a dry, ventilated subfloor.
Fiberglass insulation: what it is made of, how it performs and what to wear when handling it
Fiberglass insulation is made of extremely fine glass fibers woven into a fibrous mat.
Batt insulation: how batts and rolls work, what the facing means and how to fit them without gaps
Batt insulation is pre-cut material sold in large blocks or rolls that traps air to slow heat transfer.