The Caleffi F29571 is a dual-scale temperature gauge. It is used in biomass thermal systems.
Best for verifying anticondensing valve set point during commissioning and service.
Specifications sourced from Caleffi North America technical literature. Last reviewed July 2026.
Key Features
Dual-Scale Fahrenheit and Celsius Dial
A single dial reads 32 to 250 deg F and 0 to 120 deg C. Dual-scale means one temperature displayed in both units, not two separate readings.
Fits ThermoProtec and ThermoBloc
Designed for Caleffi Series 280 ThermoProtec anticondensing valves and Series 281 ThermoBloc units.
Technical Specifications
| Product Type | Dual-Scale Temperature Gauge |
| Application | Biomass |
| Scale Range | 32 to 250 deg F / 0 to 120 deg C |
| Compatibility | Caleffi Series 280 ThermoProtec and Series 281 ThermoBloc valves |
Related Products
- Caleffi 280165A : ThermoProtec Anticondensing Valve 130 F 1" NPT
- Caleffi 280166A : ThermoProtec Anticondensing Valve 140 F 1" NPT
- Caleffi 280175A : ThermoProtec Anticondensing Valve 130 F 1-1/4" NPT
- Caleffi 280176A : ThermoProtec Anticondensing Valve 140 F 1-1/4" NPT
Frequently Asked Questions
What is Caleffi F29571 used for?
It is a dual-scale temperature gauge reading 32 to 250 deg F and 0 to 120 deg C on a single dial. Dual-scale means one temperature shown in both units, not two separate readings. It fits Caleffi Series 280 ThermoProtec and Series 281 ThermoBloc units.
Does Caleffi F29571 read supply and return at the same time?
No. It is a single-point gauge with two unit scales on one dial. Measuring supply and return separately requires two gauges.
What is the warranty on Caleffi F29571?
Caleffi covers this product under its standard two-year limited warranty against defects in material and workmanship from the date of shipment. ZOT Supply is an authorized Caleffi distributor.
- Application:
- Biomass
- Product Type:
- Dual-Scale Temperature Gauge