System of heating circuits connected in series with different temperature levels
DE102019000430A1
Process for achieving very low return temperatures by means of a heat pump, heating arrangement for carrying out the process, and system for heating and cooling distribution networks
DE102016002790A1
Hot water tank with internal heating register for the flow of heating water in countercurrent principle
DE102013005691A1
Method for connecting heating circuits with different temperature levels in a dynamic system in series
DE102010010088A1
Method for reducing flow and return temperature and maximizing temperature difference between flow and return paths in heating circuits in heating system for residential building, involves guiding flow line to heating circuit in position
DE102008004385A1
Fluid e.g. gas, system alternatively switching circuit, has selected wiring arrangement enabling simple and uninterrupted switching operation, where wiring arrangement is formed by four/two way valves
DE102006020822A1
Changeover of heater loop switching order, involves using two units of four by two ways valves, switched in two steps, one after other with different temperatures, where eight by two way valves are further development of former valves
DE102006017286A1
Circuit for reducing the return temperature for two heating circuits with different temperature levels
DE4234642A1
Danger warning system, esp. for multi-family home - has encapsulated electric lead which activates alarm switch when encapsulation is broken
DE3825083A1
Heating unit
DE3119938A1
Mower for combine harvesters
SE8006354L
Self-centring chuck
GB191414773A
Detachable Fuel Pump for Aircraft.
GB191414774A
Process for the Production of Bodies and Supporting Planes for Aeroplanes and of Floats and Boat Bodies for Hydroplanes.
GB191414775A
Exhaust-box for Engines of Aircraft.
GB191316726A
Device in connection with Air Navigating Apparatus for Enabling a Firearm to be Discharged Through the Propeller.
US992811A
Apparatus for clearing and filtering waste water.
GB190925587A
Improvements in and connected with Water Purifying Apparatus for Paper and like Factories.
