Printable tool
Water heater replacement worksheet
Use this worksheet to document your current setup, estimate household needs, and prepare better questions for a licensed plumber.
Current water heater snapshot
| Item | Notes |
|---|---|
| Current type | Gas tank / electric tank / tankless / heat pump / indirect / other |
| Fuel or power source | Natural gas / propane / electric / other |
| Tank capacity or flow rating | |
| Approximate age | |
| Location | Basement / garage / closet / attic / utility room / other |
| Venting type if gas | Atmospheric / power vent / direct vent / unknown |
| Known problems | Leaking / rusty water / slow recovery / noise / age / code issue |
| Last maintenance | |
| Emergency replacement needed? | Yes / no |
Household demand notes
| Question | Answer |
|---|---|
| Number of people in home | |
| Bathrooms | |
| Highest-demand fixtures | Large tub / multi-head shower / laundry / dishwasher / other |
| Simultaneous hot water use issues | |
| Planned remodels or additions | |
| Current utility concerns | High gas bill / high electric bill / running out of hot water / other |
Replacement options to compare
| Option | Pros to ask about | Tradeoffs to ask about | Quote notes |
|---|---|---|---|
| Standard tank | Familiar, lower upfront cost, simple replacement in many homes | Standby losses, tank footprint, finite hot water | |
| Heat pump water heater | High efficiency, strong fit for many electric homes | Space, air temperature, condensate drain, noise, maintenance | |
| Tankless gas | Continuous hot water, wall-mounted footprint | Gas line sizing, venting, flow limits, maintenance | |
| Tankless electric | Compact, no combustion vent | Very high electrical demand in many homes |
Installer handoff checklist
Ask each installer to confirm:
- Recommended size or capacity and why it fits the household.
- Whether the existing gas line, electrical circuit, venting, drain pan, expansion tank, and relief discharge piping are acceptable.
- Whether permits and inspections are included.
- Whether the quote includes removal and disposal of the old unit.
- Warranty length for the tank, heat exchanger, parts, and labor.
- Maintenance requirements, including filter cleaning for heat pump models and flushing or descaling where applicable.
- Rebates, tax credits, or utility programs that may apply.
Leak and failure warning log
| Date | Symptom | Location | Immediate action | Professional follow-up |
|---|---|---|---|---|
| Rust-colored water | ||||
| Water near tank | ||||
| Popping or rumbling | ||||
| Relief valve discharge | ||||
| No hot water |
Bid comparison
| Contractor | System type | Total installed price | Permit included | Warranty | Timeline | Notes |
|---|---|---|---|---|---|---|
Red flags to slow down
- A quote that skips permit and inspection questions.
- A gas replacement that does not address venting and combustion air.
- A tankless quote that does not discuss gas line capacity or electrical requirements.
- A heat pump water heater quote that ignores installation space, condensate drainage, and air temperature.
- Any active leak near wiring, gas piping, or structural materials.
Related guides
- Water heater maintenance and replacement
Review replacement timing, maintenance, and common failure signs.
- Heat pump water heater guide
Compare heat pump water heater requirements before asking for bids.
- Tankless vs. tank water heaters
Compare capacity, installation constraints, and maintenance.
- How much does a plumber cost?
Put water heater quotes in the context of local plumbing labor.