Taking Comfort and Efficiency to the Next Level
An Investment You’ll Feel Right at Home with
Heating your home or business is one of the biggest investments you’ll
ever make…and you deserve a heating system that delivers unmatched
comfort, dependability and energy savings, year after year. That’s why
Eff from Lochinvar is the smart choice for heating.
Eff, with inputs ranging from 150,000 to 300,000 Btu/hr, more
than lives up to its name, with an outstanding 84% AFUE. It has two-
stage firing that saves fuel by closely matching heat output to system
demand, maximizing operating efficiency.
Two-Stage Firing
During the majority of the heating season less than full boiler input is
required to satisfy a heat load. For this reason Lochinvar has developed
a two-stage firing system. Two-stage firing — standard equipment on all
Eff boilers —provides dramatic fuel savings by reducing heat
output 50%. That means when outdoor temperatures become warmer,
the boiler will use less fuel to maintain comfortable indoor temperatures.
Trouble-Free Operation
There’s nothing more irritating than a boiler that sputters out when you
need it most. That’s why Eff has an integrated boiler control
that ensures safe burner operation and prevents nuisance flame-failures.
Eff is also designed to operate on low gas pressure — a key
consideration in regions where natural gas supply pressure is in the
4 - 5 inch range.
Space-Saving Design
With Eff, you get high efficiency heating in a surprisingly
compact unit. It fits easily where other boilers won’t.
The Eff is remarkably light
because of its copper tube heat exchanger
and other design breakthroughs. For
example, Eff uses Loch-Heat™
tile to reduce unit weight by 25% as
compared to conventional cast refractory
materials. Loch-Heat tile also increases efficiency by reflecting heat
back into the combustion chamber rather than absorbing it.
High Efficiency,
Gas Fired
Heating Boiler
Eff has an 84% thermal efficiency rating, which means 84 cents out of every fuel dollar are used to create heat.
Other efficiency ratings can be misleading and result in artificially high ratings.
Thermal Efficiency
Combustion Efficiency
Thermal Efficiency—Your Reliable Yardstick For Savings
Stage 1 Stage 2
Low Fire
High Fire
With standard two-stage firing,
Eff reduces gas consumption.
On colder days the boiler fires
at full input.
In warmer conditions Eff
reduces heat output to save energy
and reduce cycling.
