Tankless vs. Tank Water Heater Cost
Using the current national defaults, the modeled typical costs are $4,831 for tankless water heater sizing & cost and $2,291 for water heater replacement cost. Both sides use the same dated baselines and verified indices, so the comparison stays aligned with the calculators.
| Measure | Tankless Water Heater Sizing & Cost | Water Heater Replacement Cost |
|---|---|---|
| Typical | $4,831 | $2,291 |
| Planning range | $3,623–$6,522 | $1,833–$2,932 |
| Baseline unit | fixture | unit |
| Material index | WPUIP2300001 | WPUIP2300001 |
These are model comparisons, not bids. Scope and useful life can differ.