At work we have a 3 boiler system, providing the whole buildings' hot water and heat requirements. Each boiler is an ATAG 60kw, so i believe, operating on a "cascade" system. There is a large white cylinder with an immersion in the bottom, piped into the boiler pipework with a valve and stat. The hot water from the cylinder is pumped around the shop with branches taken off to the hot taps. There are two pumps sidebyside on the main feed to the heaters. Though I believe only one of them is in use - thats what the control panel says. All 3 boilers display "GOOD" on the front.
There is a temp gauge on one of the pipes, reading 55 degrees. Not sure if this is feed or return. But I'm sure my heating at home gets much hotter than this, and its a 20 yr old 11kw solo!
The problem is that the shop just isnt hot enough, and the water never gets hot enough just lately (cold weather).
The sales area of the shop is heated with fan coil units in the ceiling, which look like air con units. Sabania. There are 6 of these, controlled by two controllers. They are set at 21 degrees, but the temperature in the store rarely gets above 15 degrees lately. The sales area is 10,000sqft. There is an air curtain over the front door, also on the boilers. On the sales area, there is approximately 45 metres of open front refrigeration, linked to a compressor pack, so they dont produce any heat, just cold air.
The warehouse has a single fan blower (nowhere near big enough, IMO), and an air curtain which only operates when the back door is open. Again, the place is never hot enough. Warehouse is probably 5000sqft, the ceiling is between 15 and 18ft high.
A recent addition (november) to the system is 4 radiators in the offices (the offices ARE lovely and toasty!). But the rest of the system was installed in February this year, so the boilers and blowers are all new.
Does this system sound correctly sized to you? Because its doing a **** job at heating our shop.
*Out of interest, Previously there was a central air system ducted from a heat recovery unit, linked to the refrigeration. I'd love to meet the madman that decided this was a bad thing! Because for a start it did a cracking job of heating the shop, and it was certainly cheaper to run, using a byproduct of the vast refrigeration system!
Any comments welcome. Cheers.
There is a temp gauge on one of the pipes, reading 55 degrees. Not sure if this is feed or return. But I'm sure my heating at home gets much hotter than this, and its a 20 yr old 11kw solo!
The problem is that the shop just isnt hot enough, and the water never gets hot enough just lately (cold weather).
The sales area of the shop is heated with fan coil units in the ceiling, which look like air con units. Sabania. There are 6 of these, controlled by two controllers. They are set at 21 degrees, but the temperature in the store rarely gets above 15 degrees lately. The sales area is 10,000sqft. There is an air curtain over the front door, also on the boilers. On the sales area, there is approximately 45 metres of open front refrigeration, linked to a compressor pack, so they dont produce any heat, just cold air.
The warehouse has a single fan blower (nowhere near big enough, IMO), and an air curtain which only operates when the back door is open. Again, the place is never hot enough. Warehouse is probably 5000sqft, the ceiling is between 15 and 18ft high.
A recent addition (november) to the system is 4 radiators in the offices (the offices ARE lovely and toasty!). But the rest of the system was installed in February this year, so the boilers and blowers are all new.
Does this system sound correctly sized to you? Because its doing a **** job at heating our shop.
*Out of interest, Previously there was a central air system ducted from a heat recovery unit, linked to the refrigeration. I'd love to meet the madman that decided this was a bad thing! Because for a start it did a cracking job of heating the shop, and it was certainly cheaper to run, using a byproduct of the vast refrigeration system!
Any comments welcome. Cheers.
