The NTI FTVN Series II combi heats your home and makes hot water on demand, all from one compact wall-mounted unit, so you don't need a separate water heater. It delivers up to 5.8 gallons per minute of hot water, which suits smaller and mid-size homes well.

At 95% AFUE, almost all of the gas you pay for turns into heat. The boiler adjusts its output to match what your home needs, so comfort stays steady and it wastes less energy cycling on and off.

Inside is a stainless steel fire tube heat exchanger from AIC, built to last. The easy-to-read display and setup wizard make it simple to run, and built-in WiFi through NTI Net lets you or your contractor check on it from anywhere.

Key features:

• 110,000 BTU natural gas input for heating and hot water

• Up to 5.8 GPM of hot water (at a 35°F rise)

• 95% AFUE high efficiency

• 10:1 modulation, so output matches demand

• Stainless steel AIC fire tube heat exchanger

• Built-in ECM circulator pump

• 3.75" display with setup wizard; controls up to 2 heating zone pumps

• NTI Net WiFi for remote monitoring

• Vents with 2" or 3" PVC, CPVC, or polypropylene

• 5-year parts warranty; limited lifetime warranty on the heat exchanger