Is their a light to light if I turn heater off while I am away?

It may well be that your boiler has a frost protection setting - many do.

You could do well to find the manual for your boiler and read it.

As "Good Luck" says: leave the heating on with the room thermostat set to a low value (even 5 degrees) as a prevention against frozen pipes.

To help you in day-to-day writing, you should also check out when to use "Their", "There" and "They're"

belp
November 2016

Modern boilers have a self igniting pilot flame - if you switch the boiler off it will (should) restart when you switch it back on again on your return. You will not have to light it again.

Best in the winter (in my opinion) is to leave the heating on with the room thermostat set to a low value as a prevention against frozen pipes - an insurance - cost of gas versus possible cost of repairs after water damage - a burst pipe may spray water out for weeks.

Good Luck...
November 2016