Chemiluminescence You can use your Luminol product for this step while it is still moist. Mix 0.2g wet Luminol with 10 mL of 3M Sodium Hydroxide in a 1 L Erlenmeyer Flask. Dilute the solution to 500 mL. Add 20 mL 3% Hydrogen Peroxide.
Boilers in the loft Advantages (not many) ï· Boiler is out the way, if thereâs lack of space. ï· If open flue, less chance of CO Poisoning ï· Some boilers are not pretty and there is a lot of pipework Disadvantages ï· The weather, freezing pipes and boiler. The boiler itself can suffer being open to the elements, lofts can get very cold and very hot. ï· The loft is an inhospitable place the work. Carrying out maintenance and servicing is not best carried out in the loft. ï· Needs a wall to be mounted on, not all lofts have a wall.
Pros of combi boilers. 1  a gas combi boiler system contains almost all components within the boiler itself, which makes the boiler system more compact and neater looking. 2  there's no need for a cold water or feed and expansion tank in the loft, and you can immediately get hot water heated on demand.his type of system will also usually require cold water, as well as feed and expansion tanks in the loft. With a heat-only boiler (also known as a conventional boiler system), the hot water is stored in a hot water cylinder or hot water storage tank.