Few oil boilers implement wc in a worthwhile manner, but I admit to being ways behind on oil tech.
Is this feasible - 2 combi's in one home.....
- Thread starter r6deano
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How many oil boilers have you come across that will accept weather compensation then?
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I would be interested to know how this was achieved.
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Grant GEO360 weather compensator
Systems without weather compensation
When air temperatures in the house fall below the setting on the room thermostat, a signal is sent for the boiler to fire and warm the house. Unfortunately a disadvantage of this simple arrangement is that the thermostat only tells the boiler to turn on or off when the house is too cold or too hot, respectively. Some systems are even installed without a room thermostat (boiler interlock), relying solely on individual thermostatic radiator valves.
In either case no consideration is given to maintaining the correct flow and return temperatures that enable a boiler to operate in condensing mode or to any external temperature fluctuations.
The Grant Efficiency Optimiser
The GEO360 (Grant Efficiency Optimiser) is a smart control system comprising of a controller, two pipe sensors together with an internal and external air sensor, coupled to a mixing valve. With the information retrieved through the outdoor air sensor (fitted on a north facing wall) the unit can adjust system water temperature to match a heat output closer to the needs of the home. In fact, the system will adapt before it even feels too cold or too hot. In periods of warm weather the GEO360 will automatically shut the system down until it is needed again. Flow and return temperatures can be pre-set on the control module enabling condensing boilers to operate in condensing mode more often, thereby saving fuel and making the system more environmentally friendly.
The unit monitors weather conditions throughout the year regardless of the season. Without the control, a heating system does not know if it is a cool autumn night or the coldest winter day. Therefore it works as if it was always the coldest day of the year and heats the system water to a maximum temperature.
The diagrams show how the GEO360 adapts a heating system to the changing seasons:
Systems without weather compensation
When air temperatures in the house fall below the setting on the room thermostat, a signal is sent for the boiler to fire and warm the house. Unfortunately a disadvantage of this simple arrangement is that the thermostat only tells the boiler to turn on or off when the house is too cold or too hot, respectively. Some systems are even installed without a room thermostat (boiler interlock), relying solely on individual thermostatic radiator valves.
In either case no consideration is given to maintaining the correct flow and return temperatures that enable a boiler to operate in condensing mode or to any external temperature fluctuations.
The Grant Efficiency Optimiser
The GEO360 (Grant Efficiency Optimiser) is a smart control system comprising of a controller, two pipe sensors together with an internal and external air sensor, coupled to a mixing valve. With the information retrieved through the outdoor air sensor (fitted on a north facing wall) the unit can adjust system water temperature to match a heat output closer to the needs of the home. In fact, the system will adapt before it even feels too cold or too hot. In periods of warm weather the GEO360 will automatically shut the system down until it is needed again. Flow and return temperatures can be pre-set on the control module enabling condensing boilers to operate in condensing mode more often, thereby saving fuel and making the system more environmentally friendly.
The unit monitors weather conditions throughout the year regardless of the season. Without the control, a heating system does not know if it is a cool autumn night or the coldest winter day. Therefore it works as if it was always the coldest day of the year and heats the system water to a maximum temperature.
The diagrams show how the GEO360 adapts a heating system to the changing seasons:
I certainly wouldn't recommend an oil combi, they're rubbish!! There's nothing wrong with oil boilers, dated technoligy as I stated - but Kero is currently cheap.
Perhaps an Accumulator would help with your water pressure/flow problems.
Perhaps an Accumulator would help with your water pressure/flow problems.
Op: Get your incoming main checked for pressure and flow and then come back for advice.
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Appreciate the help people.
Once the new roof is in place I will investigate if I can fit a coffin tank in the ridge - I've found one that is only 12" tall, maybe I can double these up with access hatches and keep a vented system and a cylinder in an airing cupboard.
Next on the to do list is get the incoming mains pressure/flow measured
Once the new roof is in place I will investigate if I can fit a coffin tank in the ridge - I've found one that is only 12" tall, maybe I can double these up with access hatches and keep a vented system and a cylinder in an airing cupboard.
Next on the to do list is get the incoming mains pressure/flow measured
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