A failed water heater at a restaurant, office building, or multi-family property isn’t a same-day swap the way it is in a house — commercial systems are sized around peak-hour recovery rate, not tank size, and getting that wrong means running out of hot water during your busiest hours. MQ Plumbing installs, replaces, and services commercial water heaters — tank, tankless, and multi-unit recirculating systems — for restaurants, offices, multi-family buildings, and light industrial properties across the Charlotte metro.
Not sure what your property needs?
Call us and we'll walk through your system, your peak demand, and what's actually required.
Sizing a System to Actual Demand, Not a Guess
The most common reason a new commercial water heater underperforms isn’t the unit itself — it’s that it was sized to the building’s square footage instead of its actual peak usage pattern. What drives the load, and what system actually fits, varies a lot by property type:
Property Type | What Drives the Load | Typical System Fit |
Restaurant / commercial kitchen | Short, heavy peaks during service hours; often subject to health-code minimum water temperature rules | High-recovery tank or cascading tankless sized to peak service window |
Office / medical / retail | Steady but light draw spread across the day, occasional simultaneous restroom use | Standard commercial tank or single tankless unit, sized to headcount |
Multi-family / multi-unit residential | Simultaneous peak in early morning/evening across many units; distance from source matters | Central system with dedicated recirculation loop to avoid wait time at distant units |
Warehouse / light industrial | Minimal, mostly staff washroom/breakroom use | Smaller point-of-use or standard tank system, no recirculation typically needed |
Why Businesses Choose MQ Plumbing
- We size systems around actual peak demand, not a generic BTU assumption
- We handle the gas line resizing that commercial units often require, not just the water heater itself
- We’re licensed to work in both North Carolina and South Carolina
- Every project gets a written estimate before work starts
- We coordinate scheduling around your business hours, not the other way around
