Are these heating upgrades or cooling upgrades?

Both. A thermostat runs your furnace or boiler in January and your AC in July. Filters sit in the same ductwork year-round. Humidifiers matter most in winter, and dehumidification and ventilation matter most in summer. That's why we group them together instead of filing them under cooling.

Can you add these to a system you didn't install?

Usually yes. Most controls, filter cabinets, and humidifiers can be added to existing forced-air and boiler systems. We check duct sizing, static pressure, and wiring first so the upgrade doesn't strain the equipment you already own.

Which upgrade should I start with?

The right first step depends on what you are trying to improve. Filtration and thermostat setup address everyday airflow and control; humidity equipment helps with seasonal dryness or dampness; ventilation and purification address specific indoor-air concerns.

Do maintenance plans cover this equipment?

Accessory care can often be scheduled alongside annual service. Coverage depends on the equipment and the current written plan, so our team will explain what is included before service is scheduled.

HVAC SOLUTIONS · COMFORT CONTROLS

The parts of your system you actually touch.

Thermostats, filtration, humidity, and air quality equipment — the accessories that shape how your home feels every day of the year, not just in one season.

Phil says: People remember the furnace and the AC. What they feel day to day is usually the thermostat and the air coming out of the vents.

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START HERE

Four upgrades that work all year

Each of these connects to the heating and cooling equipment you already own, so they help in January and July alike.

Thermostats

Smart and programmable controls, wired and configured for your specific system.

Heating
Cooling
Zoning

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Air Filters

The right MERV rating for your ductwork — cleaner air without choking airflow.

MERV guide
Filter cabinets
Replacement

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Humidifiers

Whole-home humidity control that ends winter dryness without daily refills.

Bypass
Fan-powered
Steam

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Indoor Air Quality

Filtration, dehumidification, UV purification, and balanced ventilation.

Filtration
Ventilation
UV

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QUICK ANSWER

Comfort controls and air quality equipment are the accessories that attach to your existing heating and cooling system: thermostats, air filters, humidifiers, dehumidifiers, purification, and ventilation. We install and service all of them across Fairfield and New Haven Counties.

Key takeaways

Thermostats control both heating and cooling — they are not a summer-only upgrade
Filtration runs in the same ductwork year-round
Humidity control matters in winter; dehumidification and ventilation matter in summer
Annual service for all of it can be folded into an existing maintenance plan

OVERVIEW

Built around how your home uses propane.

These four upgrades share one thing: they attach to equipment you already own. A thermostat is the interface for your furnace, boiler, and AC. A filter cabinet sits in the return duct and works whenever the blower runs. A humidifier ties into the same air handler. Ventilation and purification condition every cubic foot that moves through the house. Grouping them under cooling never made sense — they run the whole calendar.

WHAT TO EXPECT

Propane delivery, handled.

Smart & programmable thermostat installation
Whole-home media filtration & filter cabinets
Bypass, fan-powered & steam humidifiers
Dehumidification for basements and whole homes
UV purification at the air handler
Energy & heat recovery ventilation (ERV/HRV)

EXPLORE

Programs & options

Heating Services

Furnaces, boilers, and heat pumps installed and serviced.

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Cooling Services

Central AC, mini-splits, and seasonal tune-ups.

Learn more

Maintenance Plans

Annual service that includes filters, humidifier pads, and control checks.

Learn more

Equipment Upgrades

Replacement systems and high-efficiency equipment.

Learn more

FAQ

Frequently asked questions

Are these heating upgrades or cooling upgrades?: Both. A thermostat runs your furnace or boiler in January and your AC in July. Filters sit in the same ductwork year-round. Humidifiers matter most in winter, and dehumidification and ventilation matter most in summer. That's why we group them together instead of filing them under cooling.
Can you add these to a system you didn't install?: Usually yes. Most controls, filter cabinets, and humidifiers can be added to existing forced-air and boiler systems. We check duct sizing, static pressure, and wiring first so the upgrade doesn't strain the equipment you already own.
Which upgrade should I start with?: The right first step depends on what you are trying to improve. Filtration and thermostat setup address everyday airflow and control; humidity equipment helps with seasonal dryness or dampness; ventilation and purification address specific indoor-air concerns.
Do maintenance plans cover this equipment?: Accessory care can often be scheduled alongside annual service. Coverage depends on the equipment and the current written plan, so our team will explain what is included before service is scheduled.

DISCOVER MORE

Your next step starts here.

Heating Oil Delivery

See how Levco keeps your home supplied with dependable automatic delivery, flexible pricing options, and local support.

Explore Heating Oil Delivery

Propane Delivery

Learn about reliable propane delivery and service for heating, hot water, cooking, generators, and more.

Explore Propane Delivery

Heating Service

Get expert repair, maintenance, and replacement support for your home’s heating system.

Explore Heating Service

Cooling Service

Explore AC repair, maintenance, replacement, and seasonal service for your home.

Explore Cooling Service

Equipment Upgrades

Heating equipment, central AC replacements, heat pumps, and water heaters.

Learn more

Service Area

Towns we deliver and service across Fairfield & New Haven Counties.

Learn more

Make your home feel the way it should.

Talk with a local Levco team member about fuel, service, or equipment for your home.

REQUEST A QUOTE (203) 533-8249