Our boiler died in oct and we got a vaillant ecoPro 24 and the difference has been amazing, we've had the heating on the same as before and the gas usage has halved from our old shitty 75% efficient boiler. Check your current ones ratings and see how much you'd be better off, I calculated 45% and thought I was wrong, but turned out true. Other than that I had a grand on appliances instantly dying hours apart a week before Christmas. If this new year is worse than the last ill seriously consider jumping off a bridge!