Gas interior heat not here on continuous? This will be my first winter with gas important heating. I enjoy...

This will be my first winter with gas important heating. I enjoy been given proposal that it is cheaper to leave it on continuously on a comfortable 20 degree C (when in the house) a bit than having it come on for three hours at 23 degree C in the morning from cold, later cool back down, consequently on for four hours in the evening, again from cold. Is this true? It is a two bedroom amenable plan detached house.
Answers:    I don't turn my heating sour at all, and I aim all year round. It is vanished at 18 degrees adjectives day and it go down to 16 degrees through the hours of darkness. Considering we use a gas cooker you would think we own a high bill, within fact the gas company routinely owe us money!! I regard if you keep it at a constant slightly lower temp. here are savings, you can other turn it up a bit if it is really cold. Failing that put on another jumper!!!!
I've be told this is a load of infirm cobblers put around by the energy companies to up your bills...so I'm interested to see your answers!