The ground source heat pump machine was delivered and put, by pallet truck into the garage. So level’ish with the road for the truck it came off.
But I need to clear the garage to finish the inside before it can be finished off and then filled with my stuff as I move out of my current place (being sold) and the house isn’t yet ready.
The heat pump is over 140 kg and about the size of 2 kitchen units. It doesn’t have that many edges to grab and the stairs it needs to go up or down (if it’s taken around the back) are narrow, so it’ll be hard to get people around it.
I had 6 maybe 7 people lined up to be on site on Saturday at 9:30 am until Simon (thankyou) called that he was going to borrow a battery driven stair lifting machine.
With that, some fun moving pallets, blocks, bits of wood (often as chocks), the trailer (thankyou Jock) the 2 of us got it in the house !
The machine lets you mechanically be on one stair, extend to the next stair, lever lift off the one stair etc.
An example of a built up platform of blocks and pallets. The machine would then lift itself up onto this. We’d secure it, angle it back and get it to “stair lift” lift the heat pump up to the top of the stack. Then we had to turn it by 90 degrees to get in the door (as being visualised !)
We are a family of six-two adults and four children ranging in age from 13 to 21 years …. Having now had the system in for 10 months we are delighted with it and there have been no problems to date. We are never in need of hot water as we have had a constant flow since the systems installation in October 2011
Does this system need a back-up heating system during the winter?
No, this is the only solar panel heating system that will provide you with 100% of your hot water. Also our cylinders come with a mini-emersion inside that can be turned on manually if needed. However if you would like to incorporate a back-up heating system there is a provision for a secondary heating coil in most of the systems we provide (call for specific information on tanks). If you decided that you wanted the secondary coil in the tank then we would advise you to put a manual leaver on the system and only use it if necessary.
What is the difference between an Energie Solar Panel System and Solar Tubes or Plates?
Unlike traditional solar panels (tubes and flat plates) the Energie system offers:
No unnecessary annual maintenance checks. In order to maintain the maximum efficiency of tubes and plates they must be serviced annually.
LVP panels are lightweight (weighing only 8kg) and roof structures do not need to be reinforced. Conventional solar panels are heavy-weighing anything from 40-300kg
Energie Solar Panels absorb heat from both sides unlike traditional panels which only capture radiation on one side
One Energie panel (80cmx200cm) will provide a family of up to 6 people with all of their hot water needs. With traditional solar a large amount of panels is needed to provide similar quantities of water
Energie panels need no back up from oil or gas. Other solar panels need an auxiliary energy source when the sun isn’t shining or when in high demand
Is the system provided with any device to treat bacteria such as Legionella?
Yes. In accordance with current legislation, it is provided with a circuit to rise the temperature up to 70 Degrees, which is manually activated and automatically disconnected
What happens if we install 2 panels on the roof?
The heating time will be reduced by half
Thermodynamic Panel Case Study :: Cork (Ireland) water and space heating
Most are about water heating only (no heating) with positive comments.
The Cork water and space heating was for:
235 sq m 2 storey stone cottage with a large extension that has:
– 4 bedrooms, 3 bathroom (1 en suite), 1 kitchen, 2 sitting rooms, 1 large hallway, 1 utility.
The Silver Spray property is 281 sq m (4 bedrooms ….
Radiators (not under floor heating)
– average water temp to the radiator circuit 45 degrees C input, 35 degrees average return temp.
– the radiators give the property a 1000 litre water buffer !
“I have had a thermodynamic panel installed for 18 months now and so far I can’t find fault with it.”
“It provides all the hot water requirements that is asked if it.”
“I have never switched on the built in immersion even when it has been -10 degrees outside and the panel has had an inch of ice on it.”
“I couldn’t justify solar as lets face it who wants something that only works well 7-8 months out of 12 then you need an additional piece of kit as back up, or pay £3000 per bole hole for a ground source heat pump when you don’t have enough land for slinkies or have their own personnel forest to supply a log boiler.”
280 litre cylinder
pump and fittings
County Down, Northern Ireland
“Currently there are 4 showers every morning, plumbed to dishwasher and washing machine, and and usual washing in the sink when items don’t fit in the dishwasher.”
Instead of, or in addition to a heat squirrel, how about sending the domestic hot water (DHW) waste via a coil in the thermal store?
It should be easy to have a thermostat that checks if hot water being “thrown away” is above the temperature of the lower section of the thermal store, and if so, sends the water through a heating coil in the thermal store, so it passes over some of it’s heat before it goes down the drain.
have a stratification baffle plate about a third of the way down the tank. (see photo below). This can be optionally upgraded to an insulated baffle to further improve performance but the added benefit is not huge as it is very good already.
Once the water above the baffle has been heated to a high temperature by the heat pump (50ºC-60ºC) it then shifts to heating the bottom two thirds of the tank to a much lower temperature suitable for underfloor heating (around 40ºC).
OR if / when the heat pump is generating lower temp water (often more efficient COP) it only targets the bottom section.
larger than normal lower domestic hot water coil. This is to ensure that the incoming mains water picks up as much heat from the bottom of the tank which holds the ‘cheaper’ heat produced at a high C.O.P.
The AKVAir Solar Plus is available from 300-2000 litres and is 3 bar pressure rated. The tank has 4 coils, two for solar input and two for domestic hot water (DHW) and is divided by a baffle plate, approximately 60% below and 40% above the baffle. Each section contains one solar and one DHW coil and all coils are positioned vertically.
The AKVAir Solar is available from 300-2000 litres and is 3 bar pressure rated. The tank has 3 coils, one for solar input and two for domestic hot water (DHW).
For larger domestic and commercial projects, our dedicated heating buffer cylinders are used in conjunction with our high-gain unvented cylinders to allow greater variation between heating and hot water demand.
The separate low-temperature heating buffer allows the small, infrequent heating demands of a property that is “up to temperature” to be met by stored renewable energy before activating the heat pump/boiler to reduce wasteful on/off cycling.
The solutions from www.recoupenergysolutions.co.uk are clearly all very efficient and appear to be the same or similar to those that are well used in the US, where a lot of properties have their heating systems in the basement.
They are based on an “instant” transfer of the waste water heat to the mixer in the shower and also to the cold water feed to the water heating system.
BUT, the planned house will have clothes washing machines, a dishwasher and 2 showers on the ground floor. Being on the ground floor they wouldn’t work with all the recoupenergy solutions. Also a washing machine, dishwasher, bath (or hot tub) generates the waste water, some time after the hot water tank has been re-filled with mains cold water.
So in those circumstances, the www.esavep.com/products/hot-water-cylinders Heat Squirrel (scroll to the bottom) could be better and could provide a single (so a lot cheaper) whole house solution for all waste / grey hot water heat recovery. They are about £399 (not installed). The heat squirrel has a 120 litre capacity.
A key consideration / idea will be:
Can the waste water input be regulated so that only waste water that is warmer than the water in the heat squirrel is let in to it?
It seems that for a shower, the recoupenergy solutions will be the most efficient, but for the whole house, and the total cost, a single heat squirrel could be better than a heat squirrel and one or more recoupenergy solutions.
One set up has a thermal store (a tank that heats up, and your heating is delivered by coils that go into this store, heat up and take that hot water to where you want it), and a second, linked to a pool seems to have a form of heat recover system, in that the colder water from the pool is going back in the loop for re-heating via the Thermodynamic panels and the thermal store tank.
For the thermal store the Akvaterm thermal store water tanks looked good at the 2012 Eco Expo in London.
The Akvaterm Akvantti thermal stores are oblong which could be a better shape for the plant room. It’s available as 1400lt, 2000lt or 2400lt volumes. The 1,400 litre unit is £3,757.00 + £85 carriage.
+ Provides effective buffering
+ Reduces boiler cycling
+ Allows for integration with low temp heating systems eg underfloor
+ Adds mains pressure to hot showers
+ Provides potable hot water
+ The use of a heat exchanger means that in most cases, thermal stores can be integrated with existing pressurised boiler circuits
+ Requires much smaller cold water tank then standard vented systems
+ Thermal storage is recognised by NHER software
– Heat can be lost through inefficient heat exchangers
– Storage temperature will usually have to be 10 deg C higher than required DHW temperature
– Cannot be used with existing DHW power showers and pumps
– Expensive and unvented storage, very expensive
– Vented stores require a header tank to be located above the heating systems
Points to consider when specifying a Thermal Store
The design of the heating system should be matched to the calculated peak heat load.
When including solar heating, ensure that there is extra capacity within the store to accommodate fluctuations.
Where a biomass boiler is being used, consider sizing the store to provide for the heat capacity generated in a load / firing
Consider designing not only for short-term anticipated capacity but possible future extensions to the system.
Consider stratification of water temperatures within the store, particularly where low-grade heating is provided. Effective separation between the hot water at the top of the tank and the cooler water at the bottom, can increase the time between charges.
Ensure that there is adequate insulation to the store (100mm + PU foam)