{"appears_in":[{"position":3,"ranking_slug":"best-water-heaters-2026","ranking_title":"2026 年热水器怎么买：燃气零冷水、储水式电热、升数与能效，10 款主流机型横向对比","score":8.8,"url":"https://buyranker.com/ranking/best-water-heaters-2026"}],"brand":"林内（Rinnai）","buy_url":null,"canonical_url":"https://buyranker.com/product/rinnai-rus-r16e51g-cb","category":{"name":"热水器","slug":"water-heater"},"cons":["二级能效，长期燃气成本高于一级能效冷凝机","线下同款，线上常年无公开报价"],"description":null,"id":"453e3df6c7cf20028df37a8ca6bbebba","image_url":null,"name":"林内 焕享 RUS-R16E51G-CB 16L 零冷水","official_url":null,"price":{"currency":"CNY","max":null,"min":null},"pros":["最小热负荷仅 3.8 kW，小水量更不容易忽冷忽热","内置循环泵，零冷水开箱即用","林内线下售后网络成熟","带 CO 报警"],"release_year":2025,"slug":"rinnai-rus-r16e51g-cb","specs":{"升数":"16L","尺寸":"330×536×170 mm","特色":"无缝切换燃烧、内置循环泵零冷水、CO 报警、手机远程控制","类型":"强排式","重量":"12.4 kg","产品型号":"JSQ31-R51GC","产品编码":"RUS-R16E51G-CB","能效等级":"二级","产热水能力":"25℃ 温升下 16 kg/min","最小热负荷":"3.8 kW","额定热负荷":"31 kW","额定燃气压力":"2000 Pa（天然气）"},"summary":"16L、31 kW、内置循环泵零冷水、带 CO 报警的强排式燃气热水器。"}