Description
Biasi BI1172105 Overheat Thermostat – Boiler Safety Part
The Biasi BI1172105 overheat thermostat is a safety component designed to protect your boiler from overheating. It monitors internal temperature and shuts the boiler down if unsafe levels are reached.
This part is commonly used across Biasi Activ, Advance, Garda, Inovia, and Riva ranges, making it a widely compatible and essential replacement.
If your boiler is overheating, locking out, or displaying temperature faults, replacing the thermostat can restore safe and efficient performance.
Compatible Boilers by Series
Biasi Activ A Series
- Activ A 12OV – 41-583-14
- Activ A 15OV – 41-583-15
- Activ A 18S – 41-583-11
- Activ A 20OV – 41-583-16
- Activ A 25C – 47-583-21
- Activ A 25OV – 41-583-17
- Activ A 25S – 41-583-12
- Activ A 30C – 47-583-22
- Activ A 30S – 41-583-13
- Activ A 35C – 47-583-23
Biasi Advance Series
- Advance 15OV – 41-583-35
- Advance 18OV – 41-583-36
- Advance 24OV – 41-583-37
- Advance 25C – 47-583-43
- Advance 25S – 41-583-33
- Advance 30C – 47-583-44
- Advance 30S – 41-583-34
- Advance 35C – 47-583-45
Biasi Advance Plus ERP Series
- Advance Plus 16S ERP – 41-583-27
- Advance Plus 25C ERP – 47-583-35
- Advance Plus 25S ERP – 41-583-28
- Advance Plus 30C ERP – 47-583-36
- Advance Plus 30S ERP – 41-583-29
- Advance Plus 35C ERP – 47-583-37
Biasi Garda Series
- Garda HE M96.24 SM/B – 47-970-25
- Garda HE M96.24 SM/D – 47-970-27
- Garda HE M96.28 SM/B – 47-970-26
- Garda HE M96.28 SM/D – 47-970-28
- Garda M90F 24S – 47-970-19
- Garda M90F 24SR – 41-970-10
- Garda M90F 28S – 47-970-20
- Garda M90F 28SR – 41-970-11
- Garda M90F 32S – 47-970-22
Biasi Inovia Series
- Inovia 16S – 41-583-25
- Inovia 25C – 47-583-32
- Inovia 25C ERP – 47-583-38
- Inovia 25S – 41-583-26
- Inovia 25S ERP – 41-583-30
- Inovia 30C – 47-583-33
- Inovia 30C ERP – 47-583-39
- Inovia 35C – 47-583-34
- Inovia 35C ERP – 47-583-40
Biasi Parva Series
- Parva M90 24S – 47-970-13
- Parva M90 24SR – 41-970-06
- Parva M90 28S – 47-970-14
- Parva M90 28SR – 41-970-07
Biasi Riva Advance Series
- Riva Advance HE M110.24SM/C – 47-970-29
- Riva Advance HE M110.32SM/C – 47-970-30
- Riva Advance Iso M110B.24SM/C – 47-583-11
Biasi Riva Compact Series
- Riva Compact HE M96.24 SM/C – 47-970-23
- Riva Compact HE M96.28SM/C – 47-970-24
- Riva Compact HE M96.28SR/C – 41-970-12
- Riva Compact M90E 24S – 47-970-17
- Riva Compact M90E 28S – 47-970-18
- Riva Compact M90E 32S – 47-970-21
- Riva Compact M96.24SM/C2 – 47-583-05
- Riva Compact M96.24SR/C2 – 41-583-08
- Riva Compact M96.28SM/C2 – 47-583-06
- Riva Compact M96.28SR/C2 – 41-583-02
- Riva Compact M96.32SM/C2 – 47-583-07
Biasi Riva Plus Series
- Riva Plus M90D 24S – 47-970-15
- Riva Plus M90D 24SR – 41-970-08
- Riva Plus M90D 28S – 47-970-16
- Riva Plus M90D 28SR – 41-970-09
- If you’re looking for a Biasi Riva Advance HE M110.32SM/C Boiler Pump or any other different Biasi Pump, follow the link provided.
At Heating and catering parts,
We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy
We appreciate you buying from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package.
Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday.
At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.
In a word thank you for choosing us!





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