It is universally applicable and reduces the variety of variants, as there is no longer a need to differentiate between different mounting types. The JUMO heatTHERM-DR (design 7+8) is a special variation with a specific lower housing for mounting on DIN rails or walls. This allows for easy installation on TH35 mounting rails according to DIN EN 60715 (e.g., in control cabinets). The installation effort is significantly reduced with this variant. The JUMO heatTHERM-AT flue gas temperature monitor locks the gas/oil boiler that is connected in parallel with the wood boiler to a chimney. These are the world's first built-in thermostats with "Push-In®" clamp technology, where the connection wires are simply pushed into the terminal until they stop - done! No tool is required for connecting wire or stranded wire with end sleeves, making wiring safer. This significantly reduces costs and time compared to conventional screw terminals. The "Push-In®" clamp technology allows for direct switching of loads up to 16A at 230V AC. Installation costs can thus be further reduced by eliminating the need for a load relay. Available are temperature controllers (TR), temperature monitors (TW), safety temperature monitors (STW), safety temperature limiters (STB) as single or double thermostats, as well as flue gas temperature monitors (ATW). Approvals according to DIN EN 14 597, DGRL, and UL ensure the high quality standards of this product line.