The solar power? Are there any conditions for installation? What is power buying / selling? Solar power generation subsidy (country) Benefits of all electrification EcoCute / IH / Other related products Long-term warranty for peace of mind Hapi e-plan (all-electric discount) New subscription is about to end! New construction / remodeling Latest remodeling case Company Profile Contact Us blog STAFF introduction From the perspective of preventing global warming and making effective use of resources, efforts for "energy saving" are becoming more important. At Dia Hot Service, we would like to make useful proposals regarding "energy saving" and "skillful use of electricity" at home . 　　　　　We will help our customers realize a lifestyle that uses electricity well while maintaining convenience and comfort ! COPYRIGHT (C) 2007 Dia Hot Service Co., Ltd. ALL RIGHTS RESERVED.