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Main product image of High Limit Vertical Mount Aquastat Relay, 15-Degree (F) Differential, L8148E1265
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High Limit Vertical Mount Aquastat Relay, 15-Degree (F) Differential, L8148E1265

Brand:
Resideo
SKU:
L8148E1265
Rating:
(136)
Q&A:
(28)
High Limit Vertical Mount Aquastat Relay, 15-Degree (F) Differential, L8148E1265
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$376.06 each
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In Stock
Get 129 Tue, Jun 9
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Product Highlights

Product Highlight: Electrical Rating
0.25 A @ 0.25 to 12 Vdc, Circulator: 7.4 A @ 120 Vac, Burner: 7.4 A @ 120 Vac, Circulator: 3.7 A @ 240 Vac, Burner: 3.7 A @ 240 Vac, Burner: 0.8 A max @ 24 Vac
Product Highlight: Differential
Fixed
Product Highlight: Switch Action
SPST
Product Highlight: Mount
Vertical
Product Highlight: Temperature Range (F)
180°F to 240°F
Product Highlight: Height
6-1/8"

Description

They Honeywell Aquastat Relay (L8148E1265) provides total convenience and control for a range of installations. This is an immersion-type controller that combines high limit protection with switching relay control of the burner and circulator motors. The Honeywell L8148E1265 Aquastat Immersion Controller Relay is available with horizontal and vertical mounting cases.

Features:
  • High limit opens burner circuit only.
  • Includes accessory terminals for adding a remote low limit controller.
  • Case available for horizontal or vertical mounting.
  • Requires a 24 Vac thermostat with heat anticipator set at 0.2A.

Specs

Frequency:

60 Hz

60 Hz

Application:

High Limit

Switch Action:

SPST

Electrical Rating:

0.25 A @ 0.25 to 12 Vdc

Circulator: 7.4 A @ 120 Vac

Burner: 7.4 A @ 120 Vac

Circulator: 3.7 A @ 240 Vac

Burner: 3.7 A @ 240 Vac

Burner: 0.8 A max @ 24 Vac

Electrical Ratings (ALR):

Burner: 44.4 A @ 120 Vac

Circulator: 44.4 A @ 120 Vac

Burner: 22.2 A @ 240 Vac

Circulator: 22.2 A @ 240 Vac

Temperature Range (F):

180°F to 240°F

Differential:

Fixed

Max Temp Differential:

15°F

Height:

6-1/8"

Width:

4-3/8"

Depth (Inches):

3-1/8"

Operating Humidity:

0% to 95% (non-condensing)

Mount:

Vertical

Max Ambient Temp (°F):

150F with 1.2A 24V Load

77F with 1.4A 24V Load

Connection Type:

Quick-Connect

Capillary Length:

4-1/2"

Anticipator Rating:

0.2 A

Voltage:

120v

Max Pressure (PSI):

255 (Immersion Well)

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Voltage
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Product Reviews

4.89 out of 136 reviews
99% would recommend this product
4.89
out of 136 Reviews
99% would recommend this product
WRITE A REVIEW
5 star
91%
4 star
7%
3 star
1%
2 star
1%
1 star
0%
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Customer Images

Most Liked Positive Review

I would purchase this product again

Product work in my first attempt. I am an accountant and if I can install this product i think most of the people would not have problem.
VS

Most Liked Negative Review

It works but it's noisy.

The old unit on my furnace stopped initiating the burner flame. This unit solved that problem with easy, straight forward installation instructions. However, the relay chatters during the heating cycle. If this shortens the life of the unit, it's a loser. And the chatter has become background noise when I'm in hearing range.
Showing 1-10 of 136 reviews

Works Perfectly

Had to replace a non-working unit. this was a direct replacement that fit perfectly.
Ken
Pittsburgh PA
4 months ago
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worked perfectly, ready to get another one!

Worked as designed, got here fast!
MO
Greensboro NC
6 months ago
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Excellent support

Originally purchased the wrong aquastat, but support worked with me to get the correct unit and provided free return shipping of the wrong part. Really helped sort out a confusing mess of which part to use in a friendly and communicative manner. Will definitely use SupplyHouse for future parts needs!
DIY homeowner
Philly
6 months ago
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Yes I would buy this product again!

The old aquastat was discontinued. The replacement aquastat worked perfectly no issues on installing it.
Home owner
Erie, Pennsylvania
1 years ago
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???

Can't give a good view of the product yet. Still using heat where it must be installed. But it looks like it will work well.
???
NJ
1 years ago
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would buy again easy install

easy install works good last a long time
old farmer
wyoming
1 years ago
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Supply House to the rescue

Supply House comes to the rescue again. Whenever my boiler breaks ( usually once a season) 🤣 I know exactly where to go to for parts and crazy next day shipping. Thank you for the exceptional service. You have a life long customer.
Michigander
SE Michigan. Lake St Clair
1 years ago
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Good quality

Perfect fit. But one day later after original delivery date. Overall I would still keep buying parts from you guys.
Dang73
Chicago,Il
1 years ago
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I would buy again.

like it should
Furnace Clinic
Chicago IL
1 years ago
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Fast and well priced

Had to order this part for my boiler. It arrived fast and saved me a few hundred dollars.
Newbee
Philadelphia, PA
1 years ago
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Product Q&A

28 Questions
28 Questions
ASK A QUESTION

Q: Hi. What is the replacement for a Honeywell L8148E-1166? I'm replacing one with the 1.5 in sensing element. Does the replacement come with the heat conductive paste? Also, what well goes with it? Thanks, Mark

Asked by Mark 2 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Hi Mark. The L8148E1166 was directly replaced by SKU: L8148E1265, which can be used with 1/2" well SKU: 121371A

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Q: I have an HB Smith Boiler with a Honeywell L8148E 1000. Will the L8148E 1265 be a suitable replacement.

Asked by Mike 2 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse

Hi Mike. The direct replacement for your L8148E1000 is the L8148J1009.

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Q: i have an L8148E1257 installed currently. The service tech is specifying a replacement as L8148E1265. Whats the difference? Also - when replacing is it an absolute MUST that I use an adapter well?

Asked by jb 8 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

L8148E1265 has a high limit operating range of 180-240 degrees and includes a molex plug for use with a vent damper. L8148E1257 has a high limit operating range of 140-240 degrees and does not include a molex plug for use with a vent damper. L8148E1257 is still an active part number and if that is what you currently have then that is what would be suggested to replace it with. https://www.supplyhouse.com/Honeywell-L8148E1257-140-240F-AquaStat-Relay-w-Vent-Damper-Connection

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Q: I need to replace a L8148A1157 on a Weil Mclain oil boiler. It is a vertical mount, 120v circulator, 120V burner control with a 15 degree differential. Can this be used?

Asked by Mike H. 10 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

The honeywell L8148A1017 comes up as the cross reference part #, for your original L8148A1157.

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Q: I need to replace my Honeywell aquastat relay. The only part number it gives me L8148E what is the direct replacement?

Asked by Mike 10 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

The L8148E is an incomplete part #, the 4 digits after the "E" should be on the base of the aquastat itself not the cover.

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Q: I need to replace a honeywell aquastat relay l8148e 1034. If I'm not mistaken, this part is obsolete. Is this considered a replacement? If not, which model is?

Asked by Vitoliciois 10 years ago

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L8148E1299 is the direct replacement.

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Q: I have a L8148E1216 Aquastat, does the new one come with the grease and do i need anything else.

Asked by Alex 10 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

not it doesn't include the heat paste.

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Q: is this the correct replacement for my old L8148E aquastat relay?

Asked by Rod 11 years ago

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We would need the 4 digits after the "E" to confirm the correct replacement.

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Q: I have a very old gas boiler with a Honeywell L8148E (no additional 4 digits) aquastat which gets the water to boiling, despite being at the lowest temp setting, causing my boiler to clank. Which L8148E would be the proper replacement for my system that has 2 low volt wires from the bank of zone valves, L1, L2, a 120v circulator pump, and 2 low volt wires to the gas valve? There is no damper control.

Asked by Fixitfox 11 years ago

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Please contact customer service with the full model and serial information of the unit the Aquastat is on for assistance in selecting replacement parts. The phone number is 1-888-757-4774.

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Q: Does the L8148E-1265 come with a molex connector for the automatic Damper?

Asked by Meterman110 11 years ago

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Yes, it does.

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