Electric boiler panels are compact, all-in-one heating solutions designed to provide efficient and reliable heating for residential and light commercial applications. These panels integrate the boiler, expansion tank, manifold, and other essential components into a single, pre-assembled unit, simplifying the installation process and ensuring optimal performance.
Technical Specifications
Boiler Size and Type
- Electric boiler panels are available in a range of power outputs, typically from 6 kW to 20 kW, to accommodate different heating load requirements.
- Many panels feature fully modulating boilers, which can adjust their output to match the precise heating demand, improving efficiency and providing more precise temperature control.
- Some models incorporate outdoor reset functionality, allowing the boiler to automatically adjust the supply water temperature based on outdoor conditions, further enhancing energy efficiency.
Components and Features
- Typical electric boiler panels include the following key components:
- Electric boiler: The heart of the system, responsible for heating the water.
- Expansion tank: Accommodates the expansion of the heated water, maintaining proper system pressure.
- Air scoop: Removes air from the system, preventing air pockets and ensuring efficient heat transfer.
- Pressure relief valve: Protects the system from excessive pressure buildup.
- Manifold: Distributes the heated water to the various heating zones.
- Circulation pump: Circulates the heated water throughout the system.
- Advanced panels may also include features like:
- Aquastat control: Monitors and regulates the supply water temperature.
- Adjustable supply water temperature: Allows the user to fine-tune the heating output.
- No venting requirements: Eliminating the need for flue or chimney connections.
Panel Design and Materials
- Electric boiler panels are designed to be compact and lightweight, often made of durable materials such as aluminum or ABS plastic.
- The compact design allows for easy installation in tight spaces, such as mechanical rooms or closets, without sacrificing accessibility for maintenance and servicing.
- The use of high-quality materials ensures the panel’s longevity and resistance to corrosion, ensuring reliable performance over the system’s lifetime.
Installation Requirements
Cable and Breaker Size
- The required cable size and breaker size for an electric boiler panel depend on the boiler’s power rating.
- For a 20 kW electric boiler, a 3 AWG or 4 AWG copper cable and a 40 A or 60 A breaker are typically recommended.
- It is essential to consult the manufacturer’s specifications and local electrical codes to ensure the proper sizing of the electrical components.
Cable Type
- Copper cables are generally the preferred choice for electric boiler installations due to their high conductivity and durability.
- Aluminum cables can also be used, but they require additional considerations for proper connections and sizing to ensure safe and reliable operation.
Installation and Maintenance
- Electric boiler panels should be installed by a qualified professional to ensure proper electrical connections, plumbing integration, and overall system safety.
- Regular maintenance is crucial for the longevity and optimal performance of the system. This includes:
- Checking the system pressure and making adjustments as needed.
- Exercising the circulation pump during the summer months to prevent seizing.
- Retightening manifold fittings to prevent leaks.
- Cleaning or replacing air filters, if applicable, to maintain efficient air circulation.
References
- RHT Spartan Prefab 1-Zone Electric Boiler Panels:
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https://www.blueridgecompany.com/radiant/hydronic/738/rht-prefab-spartan-electric-1-zone-boiler-panels
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Hydro Smart 1-Zone Low Temp 10KW Electric Boiler Pro Integrator Panel:
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https://www.menards.com/main/plumbing/hydronic-radiant-heat/radiant-heat-boilers/hydro-smart-trade-1-zone-low-temp-10kw-electric-boiler-pro-integrator-panel/hsbp4w-10p-s-lt/p-1444433727814-c-8519.htm
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RMS 9 kW Assembled Panel w/Thermolec B-9TMB Boiler:
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https://www.radiantmadesimple.com/product-page/rms-9-kw-assembled-panel-w-thermolec-b-9tmb-boiler
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HydroShark Modular Panel System for Radiant Floor Heating:
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https://www.stiebel-eltron-usa.com/products/heating/hydroshark-modular-panel-system-radiant-floor-heating
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6 kW Assembled Panel w/Thermolec B-6TMB Boiler:
- https://www.radiantmadesimple.com/product-page/6-kw-assembled-panel-w-thermolec-b-6tmb-boiler