AFFORDABLE AIR HEATING & COOLING
Tankless Water Heater Replacement in Chillicothe, OH
Upgrade your hot water, without the tank.
The right fit for your home.
Whether you're replacing an aging tankless unit or ready to swap a tank for endless hot water, Affordable Air sizes and installs tankless water heaters across Chillicothe and Southern Ohio, with free estimates and financing for all credit types.
Locally owned Chillicothe roots since 2006Licensed & insured Ohio HVAC License HV.46265Free estimates Installation & replacement
WEIGHING YOUR OPTIONS
Signs it's time
Running out of hot water with a tank that can't keep up.
A tank at the end of its life, and you'd like lower standby energy use.
Space
Wall-mounted tankless units free up floor space.
THE EQUIPMENT IS ONLY PART OF THE PICTURE
Getting it right
Sizing by flow rate.
Tankless units are sized by how many fixtures run at once, not gallons.
Gas line and venting.
Gas tankless units often need a larger gas line and new venting.
Electrical capacity.
Electric tankless units can need significant electrical service.
Water quality.
On hard well water, we plan for regular descaling or treatment.
Diagnosis first, then a clear recommendation.
We find the cause, explain it in plain language and give you the price before work begins. If a repair makes sense, we’ll say so—and if it doesn’t, we’ll tell you why.
What a tankless water heater costs in Chillicothe
Typical installed prices for gas tankless water heaters:
| System | Typical installed price |
|---|---|
| Gas tankless replacement (replacing an existing tankless unit) | $3,500–$5,000 |
| Tank to gas tankless conversion, with ordinary venting and piping work | $4,500–$6,500 |
Typical installed price ranges for Chillicothe-area homes as of October 2026. Your exact price depends on your home, system size and installation needs. Estimates on new systems are free, and financing is available for all credit types (0% APR for 72 months, with approved credit).
CLEAR SCOPE. INFORMED DECISIONS.
What affects the cost
Price depends on unit size, gas vs. electric, gas line and venting changes, electrical work and whether you're converting from a tank. Estimates are free and in writing. Financing is available for all credit types.
Request your free estimateFROM FIRST CONVERSATION TO EVERYDAY COMFORT
How it works
- 01
Free estimate
We check fixtures, gas, venting and electrical.
- 02
Clear options
A written price with what's included.
- 03
Installation
Usually completed in a day.
- 04
Walk-through
We test and show you how to maintain it.
The local people behind your home comfort.
YOUR HVAC CONTRACTOR. YOUR NEIGHBORS.
Chillicothe has been home from the beginning.
Affordable Air has worked out of 949 East Main Street in Chillicothe since 2006, installing tankless water heaters across Ross, Pickaway, Pike, Scioto, Jackson, Fayette and Vinton counties.
Communities we serve: Chillicothe · Ashville · Commercial Point · Orient · All service areas
About Affordable AirBEFORE YOU CALL
Tankless water heater replacement questions, answered.
How much does a tankless water heater cost in Chillicothe?
Replacing an existing gas tankless unit typically runs $3,500–$5,000 installed. Converting from a tank to gas tankless, with ordinary venting and piping work, typically runs $4,500–$6,500. Estimates are free.
Is tankless worth it?
For larger households or anyone tired of running out of hot water, often yes. Tank units still make sense for many homes; we'll compare honestly.
Can any home switch to tankless?
Most can, but some need gas line, venting or electrical upgrades first.
How long does a tankless unit last?
Often 15 years or more with regular descaling.
COMFORT CLUB
Keep the comfort going.
The Comfort Club is $270 a year and includes an annual furnace tune-up, an annual A/C tune-up, priority service, 10% off repairs and special access to deals.
KEEP EXPLORING
Other ways we can help
Other ways we can aid our customers
LET’S MAKE YOUR HOME COMFORTABLE AGAIN
Tell us what’s
going on.
Need a repair, a replacement estimate or routine maintenance? Start here.
(740) 779-0079Prefer to text? (740) 273-8551
For urgent service, please call.