Navien Tankless Water Heaters & Combi-Boilers
Endless hot water, on demand — installed and serviced by J&P Mechanical Solutions across Maryland, DC & Virginia.
The World's #1 Condensing Tankless Brand
Navien is the world's leading manufacturer of condensing tankless water heaters and combi-boilers. Their products are engineered in South Korea and built to deliver exceptional efficiency, reliability, and performance — with some of the highest energy factor ratings available on the market today.
J&P Mechanical Solutions is a certified Navien installer. Our technicians are factory-trained on Navien's full product lineup, which means proper sizing, correct venting, and a clean installation that protects your warranty and maximizes the life of your equipment.
#1
Condensing Tankless Brand in North America
0.98
Energy Factor — Among the Highest Available
199K
BTU Max Output for Whole-Home Demand
On-Demand Hot Water
Navien NPE Series Tankless Water Heaters
The Navien NPE series is the flagship condensing tankless water heater line — designed to deliver endless hot water while dramatically reducing energy consumption compared to traditional tank-style heaters. Because there's no tank to keep heated 24/7, you only use energy when you actually need hot water.
- Up to 0.98 Energy Factor — one of the most efficient units available
- Endless hot water — never run out, even with multiple simultaneous demands
- NaviLink Wi-Fi control — monitor and adjust from your phone
- Built-in recirculation pump — hot water at the tap in seconds
- Condensing technology captures exhaust heat for added efficiency
- 15-year heat exchanger warranty, 5-year parts warranty
Heating & Hot Water in One Unit
Navien NCB Combi-Boilers
The Navien NCB series combines a high-efficiency condensing boiler with a tankless water heater in a single wall-mounted unit. It handles both your home's space heating — through hydronic baseboard, radiant floor, or fan coil systems — and your domestic hot water, all from one compact appliance.
What is a Combi-Boiler?
A combi-boiler replaces both your furnace/boiler and your water heater with a single unit. It heats water on demand for both space heating and domestic use, eliminating the standby heat loss of a traditional tank and the need for two separate appliances.
- Replaces both your boiler and water heater — one unit, one flue
- Up to 95% AFUE efficiency for space heating
- Ideal for hydronic baseboard, radiant floor, and fan coil systems
- Compact wall-mount design — frees up mechanical room space
- Dual stainless steel heat exchangers for long-term reliability
- Smart cascade capability — link multiple units for larger homes
Navien vs. Traditional Tank Water Heaters
See why more homeowners are making the switch to tankless.
Feature
Navien Tankless
Traditional Tank
Hot Water Supply
Endless — never runs out
Limited by tank size (40–80 gal)
Energy Efficiency
Up to 0.98 EF — heats on demand
0.60–0.70 EF — constant standby loss
Lifespan
20+ years with proper maintenance
8–12 years average
Space Required
Wall-mounted — minimal footprint
Large floor-standing tank
Wi-Fi Control
NaviLink app included
Not available
Recirculation
Built-in pump — hot water in seconds
Separate pump required
Never Run Out of Hot Water Again
Navien delivers hot water the moment you turn on the tap — and keeps delivering it as long as you need it.
Ready to Go Tankless?
Our certified Navien installers will assess your home's hot water demand, recommend the right unit, and provide a free, no-obligation estimate.