Gb-Gas heat input Calculator

Can do this simple enough with a pen and paper but yes not as quickly and I'm sold on this new fangled ideas would highly recommend to any budding gas engineer.

Used this for while now but doesn't work with my new Samsung J5 need to put calculate on the main screen as there is no pop up on the j5

Don't work on s7 no way to calculate the results

New Samsung galaxy 7 does not show calculate button???? Can this be remedied?

Upgraded to samsung s7 and now has no calculation button. Needs a fix. Ill have to use another app untill sorted

Great app any body can't find calculate try the three little dots on right hand side of phone

Don't use this crap

Where is the calculate button

Just the best app I've used to gas rate

Since s6 upgrade to marshmallow calculator button has gone. Can't use the app until this is sorted. Before upgrade brilliant app use it many times a day.

Calculate button was hard to figure, on my defy it is the menu button which is also reset etc. Reasonable app which i can see me using a fair bit.

This app worked really well until my s6 upgraded to marshmallow and now the calculate button is missing. Is there an update coming for the app soon

It does still work on the new Samsung phones, just keep your finger on the bottom left hand button for a few seconds and calculate comes up.

Loved this app. But I've just upgraded to Samsung s7 and there's no button to calculate? Hope there's a fix available

Generally I like the the app, but there is a serious error in the calculations! Try putting an initial reading of 0.750 and a final reading of 0.830 then let the timer run for 2 minutes and then press calculate. You get the correct answer of 24kW. Now try the same thing again but only let the timer run for 2 seconds - you get the same answer! It doesn't take the actual time of the test into account and hence could be dangerously misleading! PS the IOS version is the same!

Can do this simple enough with a pen and paper but yes not as quickly and I'm sold on this new fangled ideas would highly recommend to any budding gas engineer.

Excellant for that service, gas rate at a click away

Very nice app . saves time.

Handy tool, saves manual calculations and time. Just a shame apple get the biggest share of gb gas apps

Used to work brilliant on my iPhone but doesn't have a calculate button on my Samsung s5. Fix it

Needs updating for the samsung galaxy s5 no way of getting to the menu button now that samsung have changed the way the phone is layed out unfortunately this app has not kept up so unable to calculate figures. I will up this back to the 5 stars that it rightly deserves once this is fixed.

Saves me soo much time on each job

Couldn't calculate it.

Does the job and is accurate. Would like a button at the bottom of the page to calculate though instead of clicking the menu.

For Gas Engineers like myself its simply BRILLIANT very useful & easy to use thank you

Try entering 100 for start reading and 101 for end reading. Time for 1 minute. Calculates out as 30 m3/hr. Please rectify before using. To use a programme like this you need to have 100% confidence in the calculations.

Great app, saves me the hassle searching through corgi chart

Great app for the gas engineer.

Does not work. No calculate button

Simply fantastic.

Poor app compared with the iPhone version

Cracking app tested it against manual calculation and almost identical readings

Good app once I had read other reviews and realised the calculate button appears when you press the menu option, but it would help if this was clear in the instructions

someone please convert iPhone version to android, this version is crap. no calculate button

Brilliant. All my mate's use it terrific!

Excellent app

Does not work no button to tap to calculate

Imperial part doesn't work on s5

Brilliant app...saves me loads of time. Checked the calculations the first few times... always spot on. Calculate button pops up when you push menu button. (button to the left of the home button.)

Works very well, just remember to put a decimal piont before your readings to get an accurate answer!