Serving Church Hill, TN & the Tri-Cities Mon–Fri 8–5 · Emergency service available (423) 357-1922
Custom Heating & Air Conditioning logo Heating & Air ConditioningChurch Hill, TN · Since 2001

Modern construction is sealed far tighter than older housing, which is excellent for energy bills and creates a problem older houses never had: not enough fresh air.

A house that cannot breathe accumulates moisture, odors, carbon dioxide and volatile compounds from furnishings and cleaning products. Opening a window works, but it lets out the air you paid to heat or cool.

A recovery ventilator solves both. It exhausts stale indoor air and brings in fresh outdoor air, passing the two streams through a core that transfers most of the heat from one to the other. An HRV transfers heat only; an ERV transfers some moisture too, which is generally the better choice in a humid climate like ours.

At a glance
  • Controlled fresh air, windows shut
  • Recovers most of the heat
  • An ERV suits our humid climate
The range

What we install

Heat Recovery VentilatorHRV

Heat Recovery Ventilator

Transfers heat between the airstreams.

Energy Recovery VentilatorERV

Energy Recovery Ventilator

Transfers heat and some moisture.

Vertical HRVHRV

Vertical HRV

For installations with limited horizontal room.

How to choose

HRV or ERV?

Both exhaust stale indoor air and bring in fresh outdoor air through a core that transfers most of the heat from one stream to the other.

Heat recovery ventilator

HRV
Transfers
Heat only
Best for
Fresh air without throwing away the heat

Energy recovery ventilator

ERV
Transfers
Heat and some moisture
Best for
Generally the better choice in a humid climate like ours
What to look for

What matters when you choose

Controlled fresh air without opening a window
Recovers most of the heat from the outgoing air
ERV generally preferred in our humid climate
Balanced and commissioned on installation
Particularly worthwhile in newer, tighter houses
Helps with moisture, odors and stuffiness
We recommend air quality equipment based on your house and your system, and only where it will help.
Custom Heating & Air Conditioning, LLC Family owned in Church Hill since 2001 · Factory-authorized Carrier dealer
Free estimates on new equipment

What happens after you contact us

  1. Step 1

    Send the form or call

    Tell us what the system is doing and we will call you back to schedule.

  2. Step 2

    We measure first

    We run a load calculation and look at your ductwork before we quote any equipment.

  3. Step 3

    You get a free estimate

    Estimates on new equipment are free, and financing is available.

Prefer to call?

(423) 357-1922
Office hours
Monday to Friday, 8–5
Outside those hours
Emergency service is available — call the same number.
Where we go
Church Hill, Kingsport, Mount Carmel, Surgoinsville, Rogersville, Johnson City, Bristol, Greeneville, Morristown and across into Southwest Virginia. Full service area.
Where we are
119 E Main St, Church Hill, TN 37642
Thank you — we have your request.
We will call you back to confirm a time. If it is urgent, call (423) 357-1922.

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Tell us what the system is doing and we will call you back to schedule. For a no-heat or no-cool emergency, please call us instead. It is the fastest way to reach us.

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We use these details only to answer your request, and we will not add you to a mailing list. Prefer to talk? Call (423) 357-1922, Monday to Friday 8–5.

Talk to us about what suits your house

Free estimates on new equipment. We measure before we quote.

(423) 357-1922
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