Heating Basics â Gas Valve Systems - Robertshaw Thermostats
Heating Basics â Gas Valve Systems - Robertshaw Thermostats
Heating Basics â Gas Valve Systems - Robertshaw Thermostats
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Hot Surface Igniters<br />
• Hot Surface Igniter Types<br />
– Silicon Nitride<br />
– Silicon Carbide (fragile)<br />
•<strong>Robertshaw</strong> ® 41-400 Series<br />
– Silicon Carbide<br />
– Uni-Line® Catalog Page 121<br />
• <strong>Robertshaw</strong> ® 41-400N Series<br />
– Silicon Nitride
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