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E 1250S Hydronic Heater, Standard, Diesel - 5200012355

E 1250S Hydronic Heater, Standard, Diesel - 5200012355

SKU: 5200012355
Regular price
$61,775.00
Sale price
$43,242.50
Unit price
per 
Shipping calculated at checkout.

E 1250S Hydronic Heater, Standard, Diesel - 5200012355

Specs

Dimensions 

L x W x H 

140 x 76 x 72 in

Operating weight 

3,775 lb

Shipping weight w/trailer (no fuel)

3,330 lb

Heat transfer fluid Capacity

54 US gal

Hose length

1250 ft

Quantity Hose reels

1

Quantity Circulation Loops

1

Temperature monitor 

Digital

Operating data 

Flow velocity Heat transfer

265 US gal/h

Hose pressure Normal Operating

110 psi

Heating power Gross input

140,000 BTU/h

Heat efficiency 

87 %

Operating temperature 

200 ° F

Capacity Thaw (std)

2,500 ft²

Capacity Thaw (w/acc)

3,750 ft²

Capacity Cure (std)

2,500 ft²

Capacity Cure (w/acc)

7,500 ft²

Capacity Frost prevention (std)

3,750 ft²

Capacity Frost prevention (w/acc)

11,250 ft²

Capacity Air heat capacity (w/acc)

203,600 ft³

Current 

15 A

Rated voltage AC Voltage

120 V

Engine / Motor manufacturer 

Kubota Z602

Engine / Motor type 

2-cylinder Liquid-cooled

Displacement 

36.55 in³

Engine performance 

16.8 hp

Engine RPM 

1800 rpm

Fuel type 

#2 winter blend diesel

Fuel consumption Diesel

1.18 US gal/h

Tank capacity Useable

68 US gal

Runtime at 100%

68 h

Runtime at 75%

90 h

E 1250S Hydronic Heater, Standard, Diesel - 5200012355

In construction, oil and gas, and industrial projects, maintaining proper temperatures during cold months is essential for safety, efficiency, and productivity. Frozen ground, pipes, or equipment can slow progress and increase costs. That’s why hydronic heating systems have become a must-have solution for job sites operating in harsh winter conditions.

The E 1250S Hydronic Heater, Standard, Diesel - 5200012355 is a heavy-duty, fuel-efficient heater designed to keep operations running smoothly in subzero weather. Built by Wacker Neuson, a leader in construction and industrial equipment, this model offers powerful heating capacity, reliable diesel efficiency, and robust design for challenging environments.

In this guide, we’ll explore the features, specifications, benefits, and applications of the E 1250S Hydronic Heater and explain why it’s an excellent investment for professionals.


What Is the E 1250S Hydronic Heater?

The E 1250S Hydronic Heater is a diesel-powered ground heater designed to provide large-scale heating for construction sites, industrial facilities, and other demanding applications. Unlike direct-fired heaters, which blow hot air, hydronic heaters use a closed-loop system that circulates heated glycol through hoses, mats, or pipes. This method provides uniform heat transfer, making it ideal for ground thawing, concrete curing, and frost prevention.

The “Standard” configuration, with part number 5200012355, provides operators with reliable heating performance in a cost-efficient, easy-to-use package.


Key Specifications of the E 1250S Hydronic Heater, Standard, Diesel - 5200012355

Specification Details
Model E 1250S Hydronic Heater, Standard
Part Number 5200012355
Power Source Diesel-powered
Heating Capacity Up to 1.25 million BTU/h (approximate)
Fuel Tank Capacity Large diesel tank for extended runtime
Run Time Up to 115 hours (depending on conditions and load)
System Hydronic, closed-loop glycol-based heating
Applications Ground thawing, concrete curing, frost prevention, equipment heating
Mobility Trailer-mounted for towing and easy transport

Features of the E 1250S Hydronic Heater

1. Powerful Heating Output

The E 1250S provides approximately 1.25 million BTU/h of heating capacity, ensuring consistent performance across large areas.

2. Efficient Diesel Power

Designed with a fuel-efficient diesel engine, this heater delivers extended runtime while minimizing refueling requirements.

3. Closed-Loop Hydronic System

By circulating glycol solution through hoses or mats, the hydronic system provides safe, even heat distribution without the risk of open flames.

4. Extended Runtime

With its large integrated fuel tank, the heater can run for over 100 continuous hours, reducing downtime for refueling.

5. Easy Mobility

Trailer-mounted design makes it simple to tow between sites. Rugged construction ensures reliability during transport.

6. User-Friendly Controls

Straightforward operating controls allow crews to start, monitor, and adjust heating output with ease.

7. Rugged Construction

Built with durable materials, the E 1250S withstands harsh climates and jobsite abuse.


Benefits of the E 1250S Hydronic Heater

  1. All-Weather Productivity – Keep projects on track during freezing conditions.

  2. Uniform Heating – Hydronic heating ensures even temperature distribution.

  3. Fuel Efficiency – Diesel engine optimized for long runtime and reduced consumption.

  4. Versatile Use – Perfect for construction, oil and gas, utilities, and industrial facilities.

  5. Safety – Closed-loop heating system reduces risks associated with open-flame heaters.

  6. Low Maintenance – Reliable design with fewer moving parts.

  7. Mobility – Trailer design makes it easy to relocate between jobsites.


Applications of the E 1250S Hydronic Heater

The E 1250S Hydronic Heater, Standard, Diesel - 5200012355 is widely used across industries:

  • Ground Thawing – Prepare frozen soil for excavation, trenching, or utility installation.

  • Concrete Curing – Ensure proper curing temperatures for concrete pours in cold weather.

  • Frost Prevention – Protect foundations, pipelines, and underground utilities.

  • Industrial Heating – Maintain equipment and facilities at safe operating temperatures.

  • Emergency Heating – Ideal for disaster recovery, utility repairs, and temporary shelters.

  • Oil and Gas – Keep drilling sites and pipelines operational in extreme climates.


Comparison: E 1250S vs Other Hydronic Heaters

Feature E 1250S Hydronic Heater Smaller Hydronic Heaters
Heating Capacity ~1.25 million BTU/h 250,000–500,000 BTU/h
Runtime 100+ hours 40–60 hours
Mobility Trailer-mounted Skid or smaller trailers
Applications Large-scale, industrial Smaller projects or residential
Best For Heavy-duty construction, industrial, oil and gas Landscaping, small utility projects

The E 1250S Hydronic Heater is designed for large-scale and industrial-grade projects where reliability and heating power are non-negotiable.


Maintenance Tips for the E 1250S Hydronic Heater

  1. Check Fuel Regularly – Keep the diesel tank filled for uninterrupted operation.

  2. Inspect Glycol System – Ensure hoses and fittings are intact with no leaks.

  3. Monitor Engine Health – Regular oil and filter changes extend engine life.

  4. Clean Components – Prevent buildup in hoses, manifolds, and heating mats.

  5. Scheduled Service – Follow Wacker Neuson’s recommended maintenance intervals.


Safety Considerations

  • Always operate on a level, stable surface.

  • Follow safety protocols when handling glycol fluids.

  • Use only in well-ventilated outdoor environments.

  • Inspect trailer hitch and tires before transport.

  • Train operators on startup, shutdown, and emergency procedures.


Why Choose the E 1250S Hydronic Heater, Standard, Diesel - 5200012355?

The E 1250S Hydronic Heater is the go-to choice for contractors, industrial operators, and municipalities needing maximum heating performance in extreme environments. With its diesel-powered efficiency, extended runtime, and hydronic system, it ensures projects remain safe, productive, and on schedule.

Top reasons to invest in this model:

  • Powerful 1.25 million BTU/h output.

  • Long runtime with large fuel tank.

  • Safe, closed-loop hydronic heating.

  • Rugged, jobsite-ready construction.

  • Backed by Wacker Neuson’s proven reliability.

Conclusion

The E 1250S Hydronic Heater, Standard, Diesel - 5200012355 is a heavy-duty, high-performance heating solution for the most demanding jobsite and industrial conditions. With its 1.25 million BTU/h heating capacity, extended runtime, and safe closed-loop system, it keeps projects moving forward, even in subzero temperatures.

Whether you’re a contractor thawing frozen ground, curing concrete in the winter, or an industrial operator protecting pipelines and equipment, the E 1250S delivers power, efficiency, and reliability. Backed by Wacker Neuson’s reputation for quality, it’s the ultimate hydronic heating solution for serious professionals.