So 6 months into having our CHPs we have just been told we need to sort out a gas analyser solution for weekly readings. Bit of a shock as were originally told we would not need one but looks like registration wont be completed until ones is in and running. Has anyone got any suggestions or recommendations, they are serious money from having a quick look. Currently we are looking at either 1 fixed analyser unit with pipes on a T to both units, or a portable option. Both would require weekly attention, but apparently we could spend an extra 3k ish on another fixed unit and only have to check them monthly. The quotes we have all indicate a 4 week lead time plus commissioning and installation whereas the portable unit we can get immediately. Would there be much of a market providing a gas reading service do you think?