Heatrae Sadia 95980035 11" RDT Resettable Horizontal Immersion Heater Thermostat

Genuine Heatrae Sadia 95980035 Thermostat Assembly

The Heatrae Sadia 95980035 is a genuine 11-inch resettable immersion heater thermostat designed for use in selected horizontal hot water storage heaters. It provides precise temperature regulation while incorporating a manual reset thermal cut-out for additional safety protection.

By monitoring water temperature within the cylinder, the thermostat automatically controls the immersion heater element to maintain the desired temperature and help improve operating efficiency.

Key Features

• Genuine Heatrae Sadia replacement thermostat
• 11-inch thermostat stem
• Integrated manual reset safety cut-out
• Suitable for selected horizontal water heaters
• Accurate temperature regulation
• Helps prevent overheating
• Easy replacement of failed thermostat assemblies

Why Thermostat Length Matters

When replacing an immersion heater thermostat, selecting the correct probe length is just as important as matching the part number. The sensing probe extends into the water heater or cylinder and monitors water temperature at a specific point within the tank.

The Heatrae Sadia 95980035 features an 11-inch probe, making it suitable for selected horizontal hot water storage heaters where a shorter thermostat may not reach the correct sensing position. Using the correct length helps maintain accurate temperature control, improve heating efficiency and support the safe operation of the immersion heater.

If a thermostat is too short, it may not accurately detect water temperature within the appliance. If it is too long, installation may not be possible or the thermostat may not operate as intended.

Always check the existing thermostat length and part number before ordering.

Common Reasons for Replacing an Immersion Heater Thermostat

A faulty thermostat can affect both hot water performance and safety. Over time, wear, electrical faults or overheating can cause thermostats to fail.

You may need to replace your thermostat if:

• The immersion heater no longer heats water
• Hot water temperatures are inconsistent
• Water becomes excessively hot
• The thermal cut-out repeatedly trips
• The reset button will not stay engaged
• The cylinder takes longer than usual to heat

Replacing a faulty thermostat with a genuine Heatrae Sadia spare part helps restore safe and reliable operation.

Related Heatrae Sadia Thermostats

Looking for a different thermostat length or configuration? We also stock other genuine Heatrae Sadia resettable immersion heater thermostats:

• 95980034 – 7" Resettable Horizontal Thermostat
• 95980043 – 11" Resettable Vertical Thermostat
• 95980036 – 18" Resettable Vertical Thermostat

Choosing the correct probe length and orientation is important for compatibility with your water heater or hot water cylinder.

Expert Support from Heatraq

Not sure if this is the correct thermostat? Our experienced team can help identify compatible parts for Heatrae Sadia water heaters and immersion systems.