TYPICAL RANGE
$2,500 – $5,500 installed
Most Southwest Indiana installs land in this band.
38.21°N · 87.57°W — Haubstadt, IN
Vol. 17 · No. 26 — A Field Guide to Comfort
Open 24/7/365
How much does a tankless water heater cost.
Tankless is a legitimately better answer for some homes and the wrong answer for others. Endless hot water is real. So is the larger gas line, the dedicated venting, and the higher install cost. Below is what an honest tankless install actually costs in 2026 — including the gas-line work and condensate drain that gets left out of most lowball quotes. We will tell you straight whether tankless makes sense for your house or whether a properly sized tank is the better call.
I
Quick Answer
The typical range, honestly stated.
All-in, installed. Updated as our distributor pricing moves.
MEDIAN
$4,000
The honest middle for a typical 3-bath home conversion.
01 / 03
Entry-level gas tankless
Non-condensing tankless unit, like-for-like swap from existing tankless or straightforward install where gas line and venting are already adequate.
LOW – HIGH
$2.5k – $3.3k
TYPICAL
$2,900
financing available — ask about current options
02 / 03
Mid-range condensing tankless conversion
Condensing tankless replacing a traditional tank water heater — includes upsizing the gas line, new PVC vent, condensate drain, and reroute of water lines.
LOW – HIGH
$3.5k – $4.5k
TYPICAL
$4,000
financing available — ask about current options
03 / 03
Premium high-output condensing with recirculation
Higher-BTU condensing unit, dedicated recirculation pump for instant hot water, smart controls, and full conversion from a tank setup.
LOW – HIGH
$4.8k – $5.5k
TYPICAL
$5,100
financing available — ask about current options
II
The Ledger
What actually moves the price.
Measured, not guessed. Each line is what we look at before quoting.
01
BTU output (peak gpm demand)
Higher GPM units cost more but actually deliver in winter when groundwater is 50°F.
+$300 – $1,200
02
Condensing vs. non-condensing
Condensing units are more efficient and use PVC vent — non-condensing needs stainless venting.
+$400 – $900
03
Gas line size and length
Tankless units need significantly more gas flow than tanks — line upgrade is common.
+$300 – $1,500
04
Venting type and run length
Sidewall PVC for condensing or stainless for non-condensing.
+$250 – $900
05
Recirculation pump for instant hot water
Worth it for homes with long pipe runs to the master bath.
+$400 – $1,100
06
Water softener or scale filter (recommended on hard water)
Hard water destroys tankless heat exchangers fast. Pretreatment is a must here for some neighborhoods.
+$300 – $1,200
07
Permit, inspection, gas leak test, combustion analysis
Required on every install.
+$150 – $350
III
A Real Estimate
What should be on an honest invoice.
If a line item is missing, ask why. These are not optional.
- 01 Properly sized tankless unit for your peak GPM demand
- 02 Gas line upsize or new dedicated line as needed
- 03 PVC or stainless venting per unit type
- 04 Condensate drain (condensing units)
- 05 New isolation valves with service ports
- 06 Removal of old tank water heater and disposal
- 07 Permit, inspection, gas leak test, combustion analysis
- 08 Manufacturer registration for full warranty
IV
The Fine Print
What's usually not included.
Quoted separately, only if your home actually needs them.
- 01 Water softener or scale filter (often recommended; separate quote)
- 02 Recirculation loop installation if no return line exists
- 03 Major gas meter upgrade (utility company responsibility)
- 04 Drywall or finish work around new venting penetrations
V
Estimate Red Flags
If you see this, get a second opinion.
The call we'd make for our own basement.
No conversation about your gas line size — tankless almost always needs more gas than your tank did.
No mention of water hardness or pretreatment in our area.
A quote that uses cheaper non-condensing venting without explaining the tradeoff.
Promising "endless hot water" without sizing for winter ground temps (50°F inlet).
A quote way below our entry-level range — usually missing the gas line work entirely.
VI
Honest Caveats
The math is real — so are the exceptions.
"For a 2-bath home with two people, a properly sized tank is often the more honest call. Tankless really earns its keep on 3+ bath homes, big families, or whenever the tank would not fit.
— Pat & the family · No. 01
"On hard water in this area, a tankless without pretreatment can lose efficiency in 2–3 years from scale. We will tell you straight if your water needs treatment first.
— Pat & the family · No. 02
"The "endless hot water" promise is real for normal showers. Two showers running at once in January with 45°F groundwater is the real sizing test — we calculate for that.
— Pat & the family · No. 03
VII
Frequently Asked
The questions we hear at the kitchen table.
No scripts. Just plain-English answers.
01 Will tankless really save me money on gas?
Yes, but the payback is slower than the marketing suggests. Most homes save $80–$200 a year on gas. The honest reasons to go tankless are space savings, endless hot water, and 20-year unit life — not energy savings alone.
02 How long does a tankless last?
18–22 years with proper pretreatment and annual descaling. Without softened water in our area, you can lose 5+ years off that.
03 Can I install it in a small closet?
Yes — that is one of the biggest advantages. As long as venting clearances and gas line capacity work, tankless frees up the space a tank would have taken.
04 What about electric tankless?
For whole-home use in our climate with 50°F groundwater, electric tankless rarely makes sense — the amperage required is enormous. It can work for point-of-use applications. We will be honest about whether it fits.
VIII
Next Step
Ready for an honest written quote?
No commission scripts. We measure your gas line, check your venting, and hand you a real number — at your kitchen table, not a script.
Last updated 2026-06-01. Pricing reflects current distributor and refrigerant transition (R-410A → R-454B) costs.
Posted Fees
The fees, in the open.
- Standard evaluation / dispatch $65 – $95 not waived
- After-hours / emergency visit from $200 24/7 dispatch
- Seasonal tune-up / maintenance visit $89 spring or fall
- Inspection & testing (most services) $99 written report
Before You Compare Quotes
These ranges are estimates — your exact price comes from your home.
Every number on this page is a real range from jobs we run in Southwest Indiana, but the final price always depends on your equipment, your home's condition, and the scope of the work. Call to schedule and we'll give you an exact, written quote — no surprises at the door.
Financing is available through third-party lending partners, subject to credit approval — ask us for current options. The evaluation/dispatch fee is quoted before booking and is not waived.
Why an instant-quote algorithm can't price your job
Open 24 / 7
Comfort made perfect —
with honest math.
Call Pat and the family, or request service online. We'll walk you through the right answer for your home, not a commission script.
Licensed & insured
Indiana HVAC: HAC25196 · Indiana Plumbing: PC10701678 · Illinois: #550-045707
24/7 dispatch
Even Sunday at 2 a.m.
We stand behind it
Every job, every time
END OF FIELD GUIDE A Family-Owned Operation — Since 2009 Vol. 17 · No. 26