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Description
Espar S3 B5E Hydronic Water Heater - GasolineFast Warm Ups, Clear Windows, and Reliable Engine Pre Heat The Espar Hydronic S3 B5E CS is a compact 5 kW (17,000 BTU) gasoline water heater that delivers rapid cabin comfort and efficient engine pre heating. Paired with the EasyStart Pro controller, it allows precise scheduling and effortless control for daily use. Key Benefits & Applications Engine & Cabin Pre Heat: Circulates heated coolant to warm your engine and HVAC core, reducing cold starts,
Fast Warm-Ups, Clear Windows, and Reliable Engine Pre-Heat
The Espar Hydronic S3 B5E CS is a compact 5 kW (17,000 BTU) gasoline water heater that delivers rapid cabin comfort and efficient engine pre-heating. Paired with the EasyStart Pro controller, it allows precise scheduling and effortless control for daily use.
Key Benefits & Applications
- Engine & Cabin Pre-Heat: Circulates heated coolant to warm your engine and HVAC core, reducing cold starts, engine wear, and improving comfort.
- Rapid Defrost & De-Ice: Quickly clears windshields and windows for safer driving in cold conditions.
- Programmable Comfort: Set schedules easily using the EasyStart Pro timer controller.
- Versatile Use Cases: Ideal for daily drivers, emergency fleets, vans, motorhomes, and boats (supports domestic hot water loops).
- Compact & Flexible: Fits tight engine bays, with separate fuel metering and coolant pumps for easier installation.
Technical Specifications
- Fuel: Gasoline (petrol)
- Voltage: 12 V
- Heat Output: 17,000 BTU (≈ 5 kW)
- Fuel Consumption: 0.06–0.17 gal/h (0.23–0.67 L/h)
- Power Draw: 7–32 W
- Max Operating Altitude: 10,000 ft (3,048 m)
- Warranty: 2 years
- Dimensions (Heater Body): 8.4 × 3.5 × 5.6 in (215 × 91 × 144 mm)
- Weight: 4.4 lb (2 kg)
- Part Numbers: 202008050000 / 202051050000 / 20.2008.05.0000 / 20.2051.05.0000
Vehicle Compatibility
- Passenger cars (from 2.0 L displacement)
- Emergency vehicles and fleets
- Vans, taxis, minivans, and commercial vehicles (incl. tandem setups with air heaters)
- Construction and agricultural machinery
- Motorhomes and boats
Install Kit Includes:
-
Easyfix tank connection (Plastic Tank)
-
1 x exhaust muffler 24mm
-
2 x 26-28mm muffler clamp
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1x Easy Start Pro Dual Timer
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Really nice shoes
Size: 9, Color: Black Polished Full Grain
My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
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Reviewed in the United States on February 3, 2026
★★★★★ 4
Penny Loafer
Size: 11 Wide, Color: Burgundy Polished Full Grain
I am ending them bak and will order the sae shoe at size 10 1/2. Most shos I fit are 11 however these were too large. They are a beautiful shoe! I will ofder a 10 1/2
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Reviewed in the United States on January 13, 2025
★★★★★ 1
Poor quality control - maybe outlet store leftovers
Size: 11.5, Color: Burgundy Polished Full Grain
The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect.
Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
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Reviewed in the United States on July 21, 2025
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
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