Yes, a tankless water heater can be installed in a condo, provided it meets local building codes and the condo’s plumbing system can support the unit’s requirements for water flow and gas or electrical supply.
Yes, tankless water heaters can be installed in condos if space and venting requirements are met. These compact, energy-efficient systems are increasingly popular in multifamily properties, offering endless hot water while saving space compared to traditional tank models.
Key Considerations for Condo Tankless Water Heater Installation
Space Requirements
Tankless units require 40-80% less space than traditional tank heaters. This makes them ideal for condos where square footage is limited. The compact design allows installation in mechanical closets, under sinks, or even on exterior walls.
Venting Options
Proper venting is critical for gas models:
- Direct vent: Uses coaxial piping through an exterior wall
- Power vent: Requires electrical power to push exhaust gases outside
- Condensing models: Can use PVC piping for venting
Electric models like those found in our best electric tankless water heater guide don’t require venting, making them simpler to install.
Water Supply Considerations
Tankless units typically require:
| Requirement | Specification |
|---|---|
| Water flow rate | 0.5-5 GPM (varies by model) |
| Inlet water pressure | 20-150 PSI |
| Pipe size | ¾” minimum (1″ preferred) |
Types of Tankless Water Heaters for Condos
Electric Tankless Heaters
Ideal for condos with limited gas access. Models like those in our best instant water heater for shower guide provide point-of-use heating without venting requirements.
Gas Tankless Heaters
More powerful but require proper venting. High-efficiency condensing models can use PVC for venting, simplifying installation.
Point-of-Use Units
Small electric models installed near fixtures provide instant hot water without long wait times. Perfect for bathroom or kitchen applications.
Installation Challenges in Condos
HOA and Building Regulations
Many condos have strict rules about:
- Exterior modifications
- Gas line installations
- Electrical service upgrades
- Venting through common walls
Electrical Service Requirements
Electric tankless heaters often need:
- 30-50 amp dedicated circuits
- 240-volt service
- Possible panel upgrades
Water Pressure Issues
Low flow rates can trigger error codes. Solutions include:
- Installing a water pressure booster
- Using flow-restricting showerheads
- Selecting low-flow activation models
Benefits of Tankless in Condos
Space Savings
Eliminating the water tank can free up 10-20 square feet – valuable real estate in condos.
Energy Efficiency
Tankless units are 24-34% more energy efficient than storage tank models according to U.S. Department of Energy.
Endless Hot Water
No more cold showers when multiple fixtures are in use simultaneously.
Longer Lifespan
Tankless units typically last 20+ years compared to 10-15 for tank heaters.
Professional Installation Tips
Hire Licensed Professionals
Proper installation is critical for safety and performance. Look for plumbers certified by manufacturers like Rinnai or Navien.
Consider a Recirculation System
A recirculation pump provides instant hot water while conserving water.
Plan for Maintenance
Annual descaling is recommended, especially in areas with hard water. Use our guide to best descaler for tankless water heaters.
Cost Considerations
Initial Investment
Tankless units cost $1,000-$3,000 installed, compared to $500-$1,500 for conventional tanks.
Long-Term Savings
According to Consumer Reports, homeowners can save $100+ annually on energy bills.
Rebates and Incentives
Many utilities offer rebates for high-efficiency tankless installations.
