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Model #S-120-EDP

Store SKU #1005093806

Sentry Natural Gas Water Boiler with 120,000 BTU Input, 88,000 BTU Output Intermittent Ignition

  • Sturdy cast iron construction offers long-term use
  • Ideal for installing in spaces with low ceilings
  • Designed for use in water or steam applications
  • See More Details

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Product Overview

Provide efficient heating for your home with the Sentry natural gas boiler. This boiler offers a low-profile design that is ideal for installations in low-ceiling applications. The cast iron construction of this boiler provides durable wear. Use this boiler to effectively heat an area of approximately 2,000 sq. ft.
  • Sentry is a hot water boiler heating system which is ideal for a wide variety of gas boiler requirements, it is ideal as a replacement or for new installations, its advanced design provides years of trouble-free, high efficiency operation while providing easy installation, even in sites with low chimney connections or low overhead clearance
  • Cast iron construction for long-lasting durability
  • Low-profile design accommodates installation in spaces with low ceilings
  • Intermittent electronic ignition
  • LP conversion kit available for purchase separately OMSID# 2022783251 model# 414-546
  • Purchase this unit in LP at your local ProDesk

Info & Guides

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current product
Sentry Natural Gas Water Boiler with 120,000 BTU Input, 88,000 BTU Output Intermittent Ignition
BrandRheemRheemRand and ReardonSlant/Fin
NamePrestige 9.0 GPM Natural Gas High Efficiency Combi Boiler with 180000 BTUPrestige 9.9 GPM Natural Gas High Efficiency Combi Boiler with 199000 BTURRG Series 84% AFUE Natural Gas Water Boiler with 167,000 BTU Input and 122,000 OutputSentry Natural Gas Water Boiler with 120,000 BTU Input, 88,000 BTU Output Intermittent Ignition
Price
Ratings
(10)
(6)
(2)
(4)
Fuel TypeNatural GasNatural GasNatural GasNatural Gas
Heat rating (BTU/hour)10000012000016700088000
Annual Fuel Utilization Efficiency (AFUE) (%)95958484.78
Ignition TypeElectricalElectricalElectricalElectrical
Heating Technology TypeForced AirForced AirRadiantConvection
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Specifications

Dimensions

Product Depth (in.)
19.75
Product Height (in.)
32.5
Product Width (in.)
17.125 in

Details

Annual Fuel Utilization Efficiency (AFUE) (%)
84.78
Capacity (gallons)
0
Color
Blue
Color Family
Blues
Condensing/noncondensing
Noncondensing
Energy Consumption (kWh/year)
1
Fuel Gauge
No
Fuel Type
Natural Gas
Heat rating (BTU/hour)
88000
Heating Product Type
Boiler
Heating Technology Type
Convection
Ignition Type
Electrical
Product Weight (lb.)
322
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
CSA Listed
Manufacturer Warranty
Limited Lifetime

Questions & Answers

7Questions14Answers

I have a Slant FIN Model # GG-100 Input 100,000 and 80,000 output. Is this comparable with this b...

Asked by JEIII February 28, 2021
2
Answers

The GG aka Galaxy was a series of boiler and included many variations in both steam and hot water. I would need the information from the rating plate, complete model number and complete serial number. With that information I would know exactly what you have and could offer an educated opinion. But with only the information GG100 I can only tell you it utilizes the Galaxy casting and has an input of 100,000 BTU's. Please feel free to give me a call. Chris 978 651 3301

CAN THIIS BE USED IN A MOBIL HOME?

Asked by ERNIE February 12, 2021
2
Answers

I an sure you would appreciate a yes or no answer. But unfortunately I can not offer you that. If your state, local community, inspector or mobile home park requires products to have specific certification for use in a mobile home, I can tell you that this product does not have that. Further I can say that I have never heard of a boiler designed specifically for a mobile home or a mobile home that had a boiler. Meaning mobile homes do not typically have forced hot water heating systems. Every mobile home I have ever encountered has utilized a furnace. Ductwork under the floor ties back to a forced hot air furnace typically located in a closet. The most common furnace used are the ones sold under the brand name miller. If you home does have a boiler, I would put your question either to the inspector or a qualified licensed contractor.

Why are regular gas boilers in general not more efficient?

Asked by Truckman October 26, 2020
2
Answers

Before I answer your question. If you are dividing this boilers 88000 BTU output into its 120000 BTU input and thinking that is your efficiency you are in error. AFUE (annual fuel utilization efficiency) is DOE Capacity (Department of Energy) divided by output. So for this boiler that would be 88000/101000 or 84.1%. Output is the value of the energy in the water that can be used to do work. DOE capacity adds back in the heat that leaks out of the boiler and system piping into the house. Why? Because that heat is not lost. Its still in the house and is part of the system. Now to the rest of your question. A chimney is not an exhaust pipe. A chimney is a machine, with few if any moving parts. It acts like a super charger and pull in the tremendous amount of air needed when combusting fuels. In order for the chimney to operate you leave roughly 16% of the air in the flue gas. 100%-16% means you end up with an efficiency of roughly 84%. The laws of thermal dynamics are not new. Engineers knew hot to a make a 99% efficient boiler over a hundred years ago. They did not do it on purpose. And even today you choose high efficiency because you want it, not because it will pay for itself. I have a 98% efficient unit in my home. I am on my third one in 10 years, and I do this for a living. I don't regret my choice because I knew what I was getting into. Why do the boilers fail quickly? When you burn a fuel you are oxidizing a hydrocarbon. Hydrogen and oxygen become water. What comes out of the chimney is in a large part water; and same with the exhaust pipe of your car. You don't see the water because you left 16% of the heat in the flue gas. That heat kept the water in the form of invisible steam. High efficiency boilers, such as mine, try to remove as much heat as possible thus the boilers exhaust is water; known as condensate. This condensate is acidic because it contains other biproducts of combustion. It will eat into the internal materials the boiler is made of . The PH also needs to be neutralized before it is put into drain lines or it will rot them out much faster than people realized. So in answer to your question. Chimney vented boilers at 84% heat extraction are as efficient as they can be and still use a chimney. Yes you can chase the lions share of the remaining 16%. But the negative impact on reliability and life expectancy make that less of an economic choice and more about what you want to have for a carbon foot print. If you have further questions you are welcome to give me a call. Chris 978 651 3301

Does this come with a new draft hood?

Asked by MS October 13, 2020
2
Answers

This boiler doesn’t use a draft hood. It has a glue collector/ diverted assembly at the back of the boiler.

what are the dimensions and height

Asked by BCC August 7, 2020
2
Answers

Boiler is 32-7/16” tall, 28-1/2” deep including the flue collector on back, and 17-1/8 wide.

What size flue is it?

Asked by Ricardo April 27, 2020
2
Answers

The flue is 6 inches

what is the relay number on this boier

Asked by herbert January 23, 2020
2
Answers

This slant fine EDP-120 doesn’t use the old Honeywell relay type controls instead it utilizes a Fuel Smart HydroStat control circuit board with L.E.D. Read out. High and Low limit, low water cut off and built in economize are all incorporated into the control.

Customer Reviews

  • 5
    out of 4 reviews
  • 100% recommend this product
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by HomeDepotCustomer
I've used them before in other houses but this particular one is in my own house after 40 years m...
I've used them before in other houses but this particular one is in my own house after 40 years my boiler created a crack I replaced it still in the process of putting the new one in and rearranging pipe in a boiler room making it up to date clean efficient great price they last long it puts out a good BTU I have a fairly large house and it does all my need plus I branched out to my garage and workshop area which is separate buildings all on the same unit easy replacement parts if you need, company is always willing to help great job guys thank you!
by Mpvramit97
I purchased this boiler to replace a twenty year old Slant Fin boiler that was still working grea...
I purchased this boiler to replace a twenty year old Slant Fin boiler that was still working great in my home. The boiler came with vent damper, circulating pump, and relief valve. This boiler has an upgraded control with an economizer feature that when used monitors thermostat activity and will set the boiler water at higher or lower temperatures depending on demand. This feature can be turned off if preferred. The boiler came pretty much pre-wired with minimal field wiring to do. Upon installation the boiler fired right up and has been working perfectly so far.
by Chris
4 people found this helpful
Showing 1-4 of 4 reviews