|
Lowest initial cost, simple like-for-like replacement
|
Atmospheric Tank 40/50G
|
1/2" NPT (36-40k BTU) |
None (Millivolt valve) |
Standard 3"/4" B-Vent chimney |
Within 10ft for T&P run |
|
Chimney liner degraded; sidewall exhaustion required
|
Power-Vent Tank 50G
|
1/2" NPT (40-42k BTU) |
120V / 15A standard outlet |
2" or 3" PVC sidewall core |
Standard floor drain access |
|
Endless hot water, reclaiming floor space, high efficiency
|
Modulating Condensing Tankless
|
3/4" NPT (160-199k BTU)
|
120V / 15A GFCI dedicated |
Direct-Vent dual 2"/3" Poly |
Acidic condensate drain |
|
Zero fossil-fuel usage, maximum energy bill reduction
|
Hybrid Heat Pump Tank 65G
|
N/A (Capped gas line) |
240V / 30A Dedicated Line
|
None (Ambient basement air) |
Gravity drain for AC water |
|
Purified drinking water with mineral rebalancing
|
Multi-Stage RO Under-Sink
|
N/A |
None (Hydraulic pressure) |
None |
Sink tailpiece waste clamp |