
Ferroli GS 20 Indoor Preheat Gas Water Heater
Indoor town-gas heater with built-in preheat — hot water the moment you turn the tap.
Supplied and installed by us.
We source this unit and our HDB-licensed crew fits it — no juggling a separate seller and a handyman. One WhatsApp, one fixed quote, one team that's accountable for the whole job.
We'll confirm stock + bundle install if you need it. Most replies within minutes during work hours. Or add to cart and send a full order at once.
Installed by Singapore's most-reviewed home team.
You're not just buying the unit — our HDB-licensed crew fits it on the same quote, backed by the track record below.
- Faults? We come back
- We follow up after install
- 12-month workmanship warranty
Why we stock the Ferroli.
The Ferroli GS 20 IE BIP is the indoor town-gas heater with a built-in preheat (BIP) recirculation feature, so hot water reaches the tap almost instantly instead of running cold for a few seconds first. 20 L/min flow, no storage tank. Indoor installation with a proper flue. Gas water heaters in Singapore must be installed by a PUB-licensed gas service worker — SparkFlow's team is licensed and HDB-compliant. WhatsApp us your gas type (PUB piped or LPG) and a photo of the current unit or install spot for a fixed supply + install quote.
Key features
- Built-in preheat (BIP) — no cold-start wait at the tap
- 20 L/min high flow
- Indoor installation (model IE) with proper flue
- Runs on PUB piped town gas



