Buy the right thing the first time.

When to use this workflow

• →Replacing a fixture, appliance, smart device, part, or system.
• →Comparing two or three options before buying.
• →You need to verify a product will fit, work, and not trigger a permit you didn’t plan for.

When not to use this workflow

• ×Active emergency — buy whatever the pro tells you in the moment.
• ×Cosmetic-only decisions where compatibility isn’t at stake.

What the route will ask

1. 01
   Product category

   Water heater, faucet, thermostat, smart lock, etc.

2. 02
   Constraints

   Space, fuel type, voltage, existing connections, budget.

3. 03
   Existing fixture / appliance brand + model

   For like-for-like replacement.

4. 04
   Dimensions of the install location
5. 05
   City + state

   For code, permit, and licensing triggers.

6. 06
   Who will install it

   Yourself, handyman, or licensed trade.

What happens, step by step

1. 01
   Define the problem and the constraints clearly.
2. 02
   Identify the exact system you’re replacing or installing into.
3. 03
   List dimensions, fuel/power source, and connection types to verify.
4. 04
   List manufacturer manuals to read before buying.
5. 05
   List compatibility checks (existing wiring, plumbing, mounting, BTU/load).
6. 06
   List installation requirements that might trigger a permit or licensed trade.
7. 07
   List warranty + recall checks.
8. 08
   Compare 2-3 options against the constraints.
9. 09
   Prepare questions for the contractor or product support.

What the route produces

• →Product spec sheet — what to verify before buying.
• →Compatibility checklist.
• →Permit / code triggers for your jurisdiction (flagged, not assumed).
• →Warranty + recall verification plan.
• →Comparison table of 2-3 options.
• →Questions for contractor / product support.

Related workflows

• Permit & Code Check

  Will this trigger one?

• Hire a Pro

  If installation is licensed.