0845 226 5754
0845 226 5754
The LTC series load units consist essentially of a pump, and a 3-way valve controlled by a thermostat, and a thermosyphon bypass. A flue thermostat detects when the stove is running and starts the pump in the load unit. We recommend a flue thermostat as opposed to a pipe stat because the temperature of the flue pipe is a much better indicator of whether the stove is going or not: the water in a system can stay hot long after the stove has gone out.
While the water in the stove is below 60ºC the valve remains closed and the water is only pumped through the backboiler in the stove. This volume of water is very small and so quickly heats up. The thermostat in the unit begins to open the valve when the water reaches 60 ºC, allowing water from the stove out into the heating system. The valve is fully open at 70 ºC which means that all the water is then allowed out into the heating system.
This means that only hot water is allowed into the heating system which is especially important if you are using an accumulator tank as you only want to allow hot water into the tank, otherwise you risk cooling your tank. Whilst the water is being heated from 60ºC to 70ºC the valve is gradually opening so the flow into the system increases gradually as the temperature does - again this reduces potential cooling of the tank through mixing.
If the power fails or the pump fails then the LTC series load unit still allows for thermosyphoning which is very important as it means that the water in the boiler should not overheat, and your system may even continue to provide heating and hot water as long as you designed it with thermosyphoning in mind.
An Esbe LTC series load unit comes with 3 thermostat dials which show the temperature of the water flowing through the unit. This allows you to visually see that the load unit is working as it should. In many smaller installations the load unit would be hidden, but it is a good idea to incorporate an inspection hatch as part of the design so you can access, inspect and service (not that the LTC should really need servicing).
Click below to view a selection of video's which show you how an Esbe load unit works, how to change the wax cartridge for the thermostat and how to enable thermosyphoning in your Esbe load units in case there is a powercut.
The Esbe LTC143 load unit is suited for use with boilers stoves, has 28mm compression fittings making it easy to plumb in, starts to open at 60ºC and is fully open at 70ºC.
You might want to have a look at the VTC series load valves which we also supply – these are 3-way thermostatic valves which means you can use your existing central heating pump.
| HEIGHT | 215 MM |
| WIDTH | 220 MM |
| DEPTH | 110 MM |
| WEIGHT | 5 kg |
The ESBE LTC143 stove load unit includes free delivery within the orange area on the map. Further delivery details.
We pride ourselves on offering a great service before, during, and after you have dealt with us. We hope this will quickly becomes apparent to you. At the same time we like to balance that by being competitive and we are keen for you to choose us. If you happen to be offered a better deal elsewhere then we do not want to lose you so please let us know and we will do our best to match or beat it.
Ring Stovesonline on 0845 226 5754 When you ring Stovesonline you will never be held in a queue, given options or made to listen to music. If we are too busy to answer immediately then simply leave your name and number on the answer phone and we will ring you straight back.
Or write to us via our enquiry system
Keep the stove air vents open during summer as it will keep your stove and chimney dry and in good condition for the winter ahead
For large log gasification boilers we generally advise the use of a VTC511 load valve as opposed to a load unit – this is because the load valve allows for a higher flow rate. If you do want a complete load unit for a log gasifiyer then the Esbe LTC171 load unit has internal threaded 2” fittings, starts to open at 60ºC and is fully open at 70ºC.
| HEIGHT | 228 MM |
| WIDTH | 246 MM |
| DEPTH | 110 MM |
| WEIGHT | 6 kg |
The ESBE LTC171 log gasifiyer load unit includes free delivery within the orange area on the map. Further delivery details.
We pride ourselves on offering a great service before, during, and after you have dealt with us. We hope this will quickly becomes apparent to you. At the same time we like to balance that by being competitive and we are keen for you to choose us. If you happen to be offered a better deal elsewhere then we do not want to lose you so please let us know and we will do our best to match or beat it.
Ring Stovesonline on 0845 226 5754 When you ring Stovesonline you will never be held in a queue, given options or made to listen to music. If we are too busy to answer immediately then simply leave your name and number on the answer phone and we will ring you straight back.
Or write to us via our enquiry system
