Prices subject to change at anytime without notice.
Realtime stock and pricing may not be accurate.
Description
APPLICATIONS
Horizontal unit heaters are low profile, compact in design and easy to install
Steady State Efficiencies – Up to 83.8%
Ideal for economical heating systems in garages and non-confined living spaces
Shipped completely assembled with controls factory installed and wired
Hanging brackets are shipped loose for field installation
Test operated at the factory to ensure proper operation and dependability
NOTE – Installer must locate unit, make unit gas supply, flue, electrical connections and mount thermostat to complete job.
CABINET
Constructed of pre-painted heavy gauge cold rolled steel
Hinged, reversible door for easy access
Adjustable louvers are furnished on cabinet for control of air flow direction
Wiring junction box is conveniently located outside unit cabinet for easy field wiring connections
Hanging brackets for suspending unit are furnished for field installation
Unit may be rotated 180 degrees (top for bottom) for ease of installation of gas, electrical and flue locations
HEATING SYSTEM
Tubular Aluminized Steel Heat Exchanger
Tubular heat exchanger is constructed of aluminized steel for superior resistance to corrosion and oxidation
Curving design of heat exchanger allows complete exposure of heating surfaces to supply air stream
Dimpled tubes with wrinkle bends allow for maximum heat transfer
Compact design reduces space requirements in unit cabinet
Heat exchanger has been laboratory life cycle tested
Inshot Burner Assembly
Aluminized steel inshot burners provide efficient trouble free operation
Burner venturi mixes air and gas in correct proportion for proper combustion
Burner assembly is removable from the unit as a single component for ease of service
Gas Control Valve
24 volt redundant combination gas control valve combines manual shut off switch (On-Off), automatic electric valve (dual) and gas pressure regulation into a compact combination control
Combustion Air Inducer
Prepurges heat exchanger and safely vents combustion products
Operates only during heating cycle
Blower motor has ball bearings and is thermally protected
Pressure Switch
Pressure switch prevents unit operation in case of blocked flue outlet
Limit Control(s)
Factory installed and accurately located
Limit control has fixed temperature setting and protects heating system from abnormal operating conditions
Flame Rollout Switch
Automatic reset switch is factory installed on the top of the burner box
Be the first to review “Lennox LF25-30A-2, Compact Horizontal Gas Unit Heater, 30000 Btuh, Aluminized Steel Heat Exchanger, 1 Fan, 115VAC” Cancel reply
A few days before Christmas in 2024, we needed to replace our furnace. After receiving three quotes, we decided to stick with our current brand CARRIER.
Asif, the service manager, demonstrated a deep knowledge of the product. He made thoughtful recommendations, provided us with options, and answered all our questions, even when they came at odd hours. Asif was always quick to respond, reassuring us that we were making the right choice. He was transparent with the schedule and reminded us of the fine print: "Due to the colder weather ahead, we're experiencing high demand. We're prioritizing emergencies", which helped us prepare in case they needed to reschedule—though, thankfully, they didn’t.
On December 28th, his father, Mohammed, and the crew arrived at our home on time around 10:30 AM. They worked diligently until about 10 PM, ensuring our old furnace was safely swapped for the new one, including the chimney lining. They also installed a new humidifier on an existing water line left by the previous owner. Both the new furnace and humidifier are working perfectly.
We weren't able to test the AC unit to ensure the wiring wasn’t accidentally switched, but after expressing my reluctance to waste money by cooling the house down just to heat it up again, Asif agreed that we could test and run the AC in the spring.
The company and crew were friendly and patient. They took great care to avoid dirtying the floor with their outdoor shoes by covering the floors and stairs and walking only on the covered areas. They also cleaned up afterward.
Today, December 31st, 2024, everything is working as it should, and we’re enjoying ice-free windows thanks to our high-efficiency furnace and humidifier. We’re grateful to the crew from Comfort Union and look forward to working with them in the future to service our system and honor our CARRIER furnace warranty.
Svitlana Azarenko
2024-12-29
I highly recommend this company. They were able to come and install a new water tank in my house the next day after submitting the application. Despite the fact that it is Christmas holidays and Sunday. All technical issues were resolved over the phone, and competent recommendations were received. The work was done quickly, neatly, and efficiently for a good price. My family is grateful for this!
jason steinke
2024-11-30
Had these guys Install Heat Pump (Gree Flexx), Heat Pump hot water tank (Stiebel Eltron)and upgrade my gas funace to a high efficency unit (Carrier). Great job, crew worked long hours to get the job done.
Ryan Jarymy
2024-11-27
We went all electric in our home this fall and I will tell you it was not easy finding an HVAC contractor to be interested in our project. Asif took on the challenge and after a few learning struggles the whole team has pulled through to get everything done. I’m not going to say it was easy because going completely electric with heat pumps etc is still quite a new concept.
What went well:
We got the system installed within a few days. A Gree Flexx 3 ton cold climate heat pump mounted up 11 inches on our foundation wall (see challenges below)
Gree 3 ton air handler w/8 kW heat strip and an electric fresh air damper (see challenges below) on an Ecobee thermostat
IMPORTANT: Working perfectly with a two breaker design 15amp breaker for air handler/45 amp breaker for heat strip. This is I believe vital for a 100 amp panel with load management. Because only having the heat strip connected to load management is far more stable. (See challenges below)
Stiebel Eltron Accelera 220E Heat Pump Water Heater is 58 gallons but when water is heated to 140°F it is ~84 gallons of 125°F water
It’s on a 15 amp breaker/240 volt, important to reduce loads on a 100 amp panel
They also installed a water softener to keep all of our efficient devices running a long time! (See challenges below)
Challenges:
1. We were without heat for a couple days, so doing this mid winter might be more challenging, but if backup electric heating was on site that might alleviate issues for future all electric installs. We had electric heating in our bedroom, so we were just fine at night. But a couple more throughout the house might make things more comfortable.
2. A single 45 amp breaker to the air handler/heat strip caused many issues with our load management solution. It would shut down our heating entirely unexpectedly even when our overall load was less than 50% of our 100 amp panel.
3. We have questions about our fresh air damper because our CO2 levels are climbing through the night when it supposedly should be bringing in some fresh air. Perhaps another learning opportunity because in other areas of our home it’s more balanced.
4. I would like to have a before/after test of our water quality to ensure the water softener is doing what it’s supposed to do and not over or under softening. Also this ensures our saline levels are safe.
5. I would like a static pressure test done to ensure we are at approximately 0.5 inches on the water column for our air handler. This will ensure we won’t have issues with our blower motor. It can also tell us if we have ducting issues.
6. Insulation of the gas line was coming apart and did not go fully into the machine, so we ran insulation to fully cover the line and the Gree Flexx could have a better strategy to cover the opening to the Out Door Unit(ODU). It’s probably taped up well enough for the winter now. The gas line is also right up against the opening so we might need to modify the opening. Getting some vibration sounds at night when it’s running hard at -20°C type temperatures.
7. I would like to add some sheltering this summer to the sides/above the ODU to protect it from blowing snow to prevent icing up that is easy to manage for device support reasons. Possibly some sound dampening on the support legs.
Some of these things are different with our system than other heat pumps getting installed because ours will be running at -30°C when others will switch to gas at temperatures closer to 0° or slightly less. Also because I wanted to keep our 100 amp panel because I believe load management is more sustainable for mass adoption of an all electric future.
Keep watching my YouTube channel for more updates on our electrification project.
www.YouTube.com/c/RockyMountainTesla
R Scroggins
2024-10-26
They were very prompt in replacing my hot water heater. Efficient, tidy and quick during the install. I would highly recommend.
dong Lauredo
2024-10-13
they are very professional people , they took good care of the problem .I would definitely recommend them .. very cheerful and nice to deal with
William Hucman
2024-10-07
My hot water tank failed on a Friday evening. Had spent some time on Saturday morning calling a number of service companies and Comfort Union was one of the quickest to respond and able to execute the work over the weekend. The gentlemen that showed up were very friendly, completed the work in a timely manner, left no damage and cleaned up after the work was complete. Great experience with Comfort Union!
Andrea Mendros
2024-10-04
I recommend this with a Heart. Found this site in goggle. And they did a very good job.
Abdel Aziz Farah
2024-10-02
Asif and Ismail were awesome came in let me know everything I needed and it was a smooth install. Would highly recommend them to anybody!!!
Reviews
There are no reviews yet.