Browse Forums Building A New House Re: Tips on maximising energy efficiency in Canberra 5Jan 10, 2023 8:37 pm hi bimbob. I know this is an old post, but im deciding whether or not to use slab insulation for a home with hydronic heating in Melbourne. Are you suggesting that a waffle pod slab will do part of the job? is it worth 10K to also do slab insulation? Thanks in advance! Re: Tips on maximising energy efficiency in Canberra 6Jan 11, 2023 7:49 am Hi there. Slab insulation is a MUST with in floor heating to achieve the best results. Waffle pods help but its not a part of the solution for in-floor heating. Not using slab insulation with in-floor heating is like having triple glazed windows without wall insulation. Slab insulation is a MUST with in floor heating. Waffle pods help but its not a complete solution. Not using slab insulation with in-floor heating is like having triple glazed windows without wall insulation. Re: Tips on maximising energy efficiency in Canberra 7Jan 11, 2023 9:41 pm I know someone in the Adelaide Hills (similar to Melb climate) who only has waffle pods and no slab edge insulation. Their hydronic still works well, but I'm sure it would be more efficient with slab edge insulation and perhaps better under slab insulation. How much more efficient I don't know. Might not be worth the extra cost. I think in Melbourne it's recommended to get slab edge insulation anyway regardless off having hydronic. I'm not that pro hydronic anyway. It's pretty laggy so you don't get a quick injection of heat/coolth when you need it. It also uses a lot more power (than RCAC) so if you need to use it out of solar hours it costs more (or uses a lot of battery energy). It's a luxury imo so if you have the money then go for it. Hi Im having trouble getting anyone to provide useful advice on going for an insulated slab North facing extension. I had Lighthouse group do the energy assessment last… 0 2447 10 years ago was a different software than we use now. it has had a lot of changes over the past years. Improvments to the software and changes to how Nathers models need… 8 2429 |