Tankless to Tankless: Technical Requirements

Tankless to Tankless Diagram

Plumbing & Retrofit Considerations

Reuse of existing gas line assuming it currently meets 199,000 BTU/h demand.
ádapting existing PVC or concentric venting to match the new unit's exhaust collar.
Upgrading isolation valves if the old ones are heavily calcified or leaking.
Installation of a scale prevention filter to protect the new dual stainless steel heat exchangers.

Code Compliance

Condensate neutralizer kit (if discharging into cast iron or public sewer).
Pressure regulating valve (PRV) testing to ensure house pressure doesn't exceed 80 PSI.

Installation Guide (Comic Narrative)

GOOD (Standard)

Step 1

1. Disconnect and remove.
2. Mount new unit.
3. Calibrate flow.
4. Endless hot water.

BETTER (Premium)

Step 2

1. Premium removal.
2. Install anti-scale filter.
3. áctivate recirculation.
4. Instant hot water.

BEST (Ultra-Premium)

Step 3

1. System overhaul.
2. Install PRV.
3. Connect WiFi module.
4. Ultimate system online.