Bobcat B-120A - 95,000 BTU Output Condensing Boiler (Nat Gas)
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
' fill='%23F15C02' d='M49 0C21.938 0 0 21.938 0 49s21.938 49 49 49 49-21.938 49-49S76.062 0 49 0m0 82.709a7.54 7.54 0 1 1 0-15.08 7.54 7.54 0 0 1 0 15.08m7.54-28.412a7.541 7.541 0 0 1-15.08 0V22.831a7.54 7.54 0 0 1 15.08 0v31.466z'/%3E%3C/svg%3E)
MANUALS (7)
'/%3E%3C/svg%3E){kind=small}
Product Highlights
Description
Compact, sleek and powerful, Bobcat boilers provides 93% Annual Fuel Utilization Efficiency (AFUE) resulting in significant fuel savings. Aluminum heat transfer plates and tubular waterways are corrosion resistant and heat up quickly. Bobcat boilers are easy to handle and can be installed floor standing or wall mounted.
- Fuel Rate Input: 120,000 BTUH Max - 30,000 BTUH min
- Boiler Water Volume: 1.0 Gallons
- Water Piping Connections: 1" Male NPT
- Gas Piping Connection: 1/2" Female NPT
- Vent Connection: 3" nominal ID pipe (PVC, CPVC, stainless steel)
- Air Intake Connection: 3" nominal ID pipe (PVC, CPVC, stainless steel)
- 12-year limited warranty with 5 year parts and labor warranty
- Floor standing or wall-hung
Specs
| Fuel Type: | Natural Gas |
|---|---|
| Boiler Type: | High Efficiency |
| System Type: | Hydronic (Water) |
| Efficiency: | 93% |
| Width (Inches): | 23-7/8" |
| Height (Inches): | 37.25" |
| Features: | EI/Spark Ignition Condensing Wall Mounted Direct Vent |
| Application: | Heating |
| Depth (Inches): | 14" |
| Vent Size: | 3" |
| Vent Type: | Stainless Steel PVC CPVC |
| Water Connection: | 1" |
| Gas Connection: | 1/2" |
| BTU Input: | 120000 |
| BTU Output: | 95000 |
Questions?
1 Replacement Part
Need help finding a replacement part?
Product Reviews
Love this Product
Product Q&A
14 QuestionsQ: Can this boiler (Slant Fin 120) be used with forced hot air or is it best with radiant heat?
Asked by Ken 14 years ago
Add your answer
Verified Reply- PexSupply StaffThis is a hot water boiler. It cannot be used with forced air systems.
Q: Can this boiler be used for heating your domestic hot water and if so how do you do this?
Asked by Ernie 14 years ago
Add your answer
Verified Reply- PexSupply StaffIt can, but you would need to connect an indirect water heater to the boiler.
Yup. Mine does. You need an "Indirect Hot-Water Heater." Mine is made by "Heat Flow" but any will do. You don't want to size the water heater too big in this type of application. My water heater is 40 gallons and supplies endless hot water. The indirect hot water heater is basically a tank with a coil of tubing inside it. Hot water is circulated through the coil and heats up the water. This is an extremely efficient set up. The Bobcat 120 loves this type of setup too. My house is about 3,000 sq.ft. My Bobcat 120 supplies my Air-handler for heating the entire house, my radiant flo, and my. I have the propane version and I love it. I built my entire house including the HVAC, plumbing and electrical so if you have any questions, shoot em over. Hope this helped. Sent: Sunday, March 18, 5:33 PM
Yes you can. Look at pages 27-29 of installation manual to see how they suggest plumbing it. Here's the link to it. http://www.slantfin.com/images/stories/Technical-Literature/installmanual_bo bcat_ba_40.pdf The hot water heater is like another zone to the boiler. When the temperature in the hot water tank drops below the set level the boiler circulates hot water thru it to heat the water in the tank. You would need to purchase the hot water tank and valves and stuff to get it working. I'm planning to do this in my house. I'm just waiting for the electric hot water heater I have now to die. Then instead of replacing it with another electric I would use the bobcat. Hope this helps.
Yes. Purchase the DHWG (Domestic Hot Water Generator)from SlantFin and install as directed. More info here: http://www.slantfin.com/index.php/products/boilers-residential/dhwg Tim Clouser
Yes this can also provide domestic hot water but you will need to add either a heat exchanger or a hot water storage tank. This product out of the box is not equipped with a secondary coil or heat exchanger for domestic hot water. I am currently using this boiler to heat 4 hydronic hot water zones, 3 radiant heat zones and an indirect water tank to supplement my Bosch hot water on demand unit.
Yes, sells a "Combi-cat" domestic hot water heater made for the Bobcat boiler. (Other heaters may work as well) I believe when I ordered my Combi-cat I had to call PexSupply (product was not listed on the site), they gave me a product number and then ordered using that number on line..
It does have setting for domestic hot water. I didn't use it as mines was used strictly for heating hot water base board. Henry
Yes, it can. However, the boiler needs to be connected to an insulated tank equipped with a heater core through which the heating water will flow to transfer the heat to the domestic hot water tank, in parallel to the hydronic heat for your house. If you only want domestic hot water however, I would go for the cheaper and probably more efficient option of just installing a standard boiler. The Installation Manual provides detailed information how several different installations can be done. The answer to the question can only effectively be provided if one knows exactly what the objectives of the consumer are.
Q: The boiler pressure gradually, depending on heating demand, rises to near 30psi and leaks out the pressure relief valve. I (the homeowner) have purged the air from all zones to lower it back down to 12psi a couple times now but it slowly climbs back up. Remedy?
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffYou will want to check the pressure reducing fill valve and expansion tank to make sure they are working properly.
Q: The furnace is making a high pitch noise. How do we fix that?
Asked by Liz 15 years ago
Add your answer
Verified Reply- PexSupply StaffThere may be air in the system that needs to be purged.
Do you have hard water??....is something restricting the flow of the water in the pipes. My old boiler had started making noise like that before we upgraded and it turned out that over the years hard water minerals were restricting flow in the unit. Another cause could be air in the lines and the system needs to be bled and purged.
I have this exact same boiler. Works great. Makes the same noise when the boiler is ramping up. Its not air in the system that needs to be blead out. I think its the fan that gets rid of the exhaust. Dont think its anything to worry about..
Q: What is the temperature supposed to read on the gauge? How many degrees?
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffThis depends on the temperature to which you set the boiler.
Acually the pressure will be determined on a few different things. Cold initial fill{city water pressure}, Plus head pressure{Height of the highest heat transfer unit},and water temperature. To calculate head pressure take your height x .433 to get gauge pressure plus city water pressure and thats pretty close to what your gauge should read. Water temp will increase that number slightly. Mine reads 14Psi. Hope this helps
Q: If i place this boiler in my basement can i put in a thermostat on my main floor to control it?
Asked by Jeremy 15 years ago
Add your answer
Verified Reply- PexSupply StaffYes, you can.
Q: where are the boilers made or manufactured
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffSlant/Fin boilers are made in New York.
Q: Is this a combi boiler?
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffNo, it is not.
Q: Why a Condensing boiler instead of a non condensing
Asked by 15 years ago
Add your answer
Verified Reply- PexSupply StaffCondensing boilers are more energy efficient and will keep utility bills down. They are most effective in low-temperature (i.e. radiant) heating systems.
Q: Is there an exterior model available?
Asked by edmo 16 years ago
Add your answer
Verified Reply- PexSupply StaffNo, Slant/Fin boilers are not rated for use outdoors.