Successful story about Lochinvar water heater dates back to 1919, with Mr. Walter Vallett's development of the first automatic gas-fired water heater in North America.
Today, Lochinvar water heater Company offers several groups of gas units for residential hot water production, where some of them are for indirect water heating, some are for manufactured housing, while the majority are standard type models:
Great number of the above Lochinvar water heater models meets or exceeds energy efficiency standards, NAECA and ASHRAE.
Also, they meet ANSI standards required for residential gas fired water heaters. This is done by implementing the combustion technology which protects from the accidental ignition of flammable vapors outside the water heater. Shield Combustion System is Lochinvar's patented system that meets the above requirement.
Thanks to the Shield Combustion System, Lochinvar water heater is high efficient, providing the benefits to its customer and the environment.
The main components for all Lochinvar water heaters with the FVIR technology are the Lock-Shield Flame arrestor plate, made of the stainless steel, low NOx burner and resettable thermal switch to protect the water heater from the heat created by flammable vapors.
Lochinvar models that are equipped with the pilot light to lit the main burner are using the piezo igniter and some are using an electronic spark ignition or hot surface.
To protect the Lochinvar water heater tank, glass lining is applied on the inner tank surface and magnesium high capacity anode rod is added for protection against corrosive water action. Magnesium anode rod is found on majority Lochinvar models.
Additional elements that are added for your convenience are the temperature and pressure relief valve and brass drain valve.
Lochinvar provides a 6-year warranty on the tank and parts with an option to upgrade it to 10 years.
High Efficiency Lochinvar water heaters are designed as FVIR models with the heating power from 30,000 to 85,000 Btu/hr, and sizes from 30 to 100-gallon capacity, with a short and tall configuration.
LTN030G-EF, LTN040G-EF and LTN050G-EF are the three high efficiency models with the EF 0.62 and recovery rate of 34-43 gph for 90 F temperature rise.
Models LTN040G-4, LTN050G-4 and LTN051G are high input models, which allow them to provide 50,000 and 65,000 Btu/hr and 53 and 67 gph for 90 F temperature rise.
Models LTN065G, ETN100 and LTN051G are models that can be used for both water and space heating as they have the side tapping for space heating applications.
Ultra Low NOx residential gas water heaters produce less than 10 ng/j of NOx gases, thanks to the newly designed radiant burner system.
Lochinvar water heater with Ultra Low NOx is an atmospheric unit that works on natural gas only. It is designed as short and tall, with an offer of the most popular sizes of 30, 40 and 50 gallons. With a low emission gas burner design, they meet SCAQMD requirement.
Ultra low NOX Lochinvar water heater features the Honeywell gas control valve which allows better and accurate control for improved economy. It also allows easy diagnostics and troubleshooting with the installed LED display.
Ultra lox NOx models are also available as high efficiency models with EF 0.62 and 2" thick foam insulation and with the sizes of 30, 40 and 50 gallons. Lochinvar also builds high input models whose 40 and 50-gallon water heaters have the high recovery rate of 53 gallons per hour on 90 F temperature rise.
Power Vented residential gas water heaters are designed in several sizes; from 40 to 75 Gallons and with the power range from 40,000 to 76,000 Btu/hr.
Lochinvar water heater with the Power Vent is using the environment friendly low NOx burner which is part of the standard FVIR technology. Only the model LVN076, 75-gallon water heater is not required to meet FVIR requirements.
Venting is very simple; Power Vented water heaters are using 120 VAC blower fan and the sidewall flue termination where the pipe is made of the affordable PVC or CPVC material. Vertical venting is also an option; and based on the size of the water heater you will use 2, 3 or 4" vent size.
All the models are using standard 3/4" NPT water connection and models LVN052G, LVN065G and LVN076 are constructed with the side connection, so they can be used for space heating also.
Power Vent water heaters are using the electronic spark ignition, have the heat trap nipples installed to reduce the heat loss in piping and two models; LVN052G and LVN065G are equipped with the 2" thick foam insulation.
FVIR model LVN065G has the highest recovery rate, 75 gallons per hour with the 90 F temperature rise. It provides 70,000 Btu/hr and has the EF 0.65. Other FVIR models with the energy factor of 0.62 or higher meet the requirements for the Energy Star approval.
Lochinvar water heater with the power direct vent is using the sealed combustion gas burning process to provide the fast recovery and high first hour rating, and it covers all three available models; 50, 65 and 75-gallon tank size. Gas input is in the range from 60,000 to 75,000 Btu/hr while the recovery rate is from 65 to 75 gallons on 90 F temperature rise.
This is a 2-pipe vent system, where one pipe is used for products of combustion and the other for the fresh air intake, needed for gas combustion.
As it is still equipped with the FVIR technology (except 75-gallon) they have the low Nox gas burner. To light the gas inside the combustion chamber, Power Direct Vent water heater is using the hot surface ignition.
Lochinvar water heater is also available as the direct vent unit that features the sealed combustion and concentric vent system. The concentric or co-axial vent draws the outside fresh air through the outer pipe and through the inner pipe it runs the products of combustion out.
The advantage of these vent systems is its flexible installation as it can rotate 360 degrees. Vent pipe and vent cap are included with the purchase of the unit.
Available models are with capacities of 40 and 50 gallons and maximum gas input of 38,000 and 42,000 Btu/hr. Both models are using low NOx burner and the pilot light ignition.
Double Duty water heaters are designed for those who want to use one tank for both water and space heating. You can choose models from 50 to 75 gallons tank size that are producing 63,000 to 76,000 Btu/hr.
Lochinvar's Double Duty water heater is heating water indirectly using the Therma-Tube Anti-Leak heat exchanger. This double wall heat exchanger is immersed inside the tank, and it separates domestic water and heating fluid.
You can also choose between the Atmospheric and Power Vented model which comes with the option for vertical and sidewall run.
All the previous models, mentioned above, has the magnesium anode rod installed for corrosion protection. Double Duty models are equipped with the tougher aluminum anode rod which reduces the risk of rotten egg odor when the anode rod deteriorates.
water heater specifically designed for manufactured home can be found
with the 30 and 40-gallon tank size and gas input of 30,000 Btu/hr for
both models. Conversion kit is supplied with the unit, so it is
convenient to convert the water heater from using the natural gas to LP
or propane gas, but with a recommendation to call a technician for this