Flat Bottom Hot Tubs — The Low-Profile Wood-Fired Tub for Small Families

Flat-floored wood-fired hot tub built for 3–4 people. Sit naturally, heat up faster, and fit it almost anywhere.

What Makes It Different

While most wood-fired tubs use a contoured base built for sitting upright, the Flat Bottom range does away with that shaping entirely — here's why that matters

Outdoor hot tub with a wood-look side table and a metal chimney stack, shown with two people sitting inside. Two inset diagrams at the top show a comparison between a flat layout and a traditional layout, labeled FLAT and TRADITIONAL.

Key features

The Flat Bottom range trades the built-in seating step for a completely flat floor — one simple change with a big effect.

Flat Floor, Natural Seating

No moulded seating ledge — stretch your legs out and sit low and level, closer to how you'd sit in a bath than perch on a bench.

Less Water, Faster Heat

A lower tub holds around 350 fewer litres than our standard-height models, so the wood-fired stove brings it up to temperature sooner.

Fits Through Tight Spaces

At 72 cm tall, it passes through narrow side gates and passageways that a standard-height tub often can't — no fence removal, no crane.

A Spa System Built Around You

LEDs, air jets and hydro jets — every system runs independently, so you control exactly what you switch on

Key features

Depending on the model and configuration, this tub can include hydro jets, air jets, and LEDs — each one controlled independently from buttons on the outside wall.

Turn Any System On or Off, Anytime

Buttons on the outer wall let you switch hydro jets, air jets, and LEDs on or off whenever you like — full control over your soak.

Hydro Jets, Adjustable Intensity

Adjust the strength from gentle to strong for a massage that relaxes tired muscles.

Air Jets, Gentle Movement

Soft bubbles keep the water moving without an intense massage — perfect for a calmer soak.

Mini LEDs That Light Up the Garden

The colour-changing glow turns the tub into a warm focal point after dark — as good to look at from the patio as from inside.

Mini LEDs, Set the Evening Mood

Soft LEDs cycle through 7 colours, glowing just enough to light the water beautifully after dark — see them in action

Engineered for Ergonomic Comfort

These details are easy to miss just by looking — but they're engineered purely for how the body sits

Key features

The walls and floor of the Flat Bottom range are shaped around the body, not just around the water — small details that make a real difference over a long soak.

Angled Backrest, Natural Recline

The walls you lean against aren't set at 90° — they tilt slightly outward, so you sit gently reclined rather than bolt upright.

A Ridge That Holds You in Place

About 30 cm in from the edge, a low circular ridge runs around the floor — just enough to stop you sliding forward as you relax.

Comfort Inflatable Tubs Don't Have

Similar-height inflatable hot tubs use straight vertical walls and a flat floor with no ridge — nothing to lean back into or stop you sliding.

Choose Your Flat Bottom Tub

Start from the base tub and add exactly what you want, or choose a pre-configured package at a special price

A round flat bottom hot tub with a wood-look brown wrap and a tall stainless steel chimney stack, shown on a patio with trees and a wall in the background. White dashed callout lines point to parts of the tub and chimney, and a small material swatch appears in the bottom-left corner.

Lowline – Wood Fired Hot Tub for 3-4 | Flat-Bottom, Fits Narrow Gates, Configurable

From £3,038

VAT and delivery are included in the price.

Learn more

Delivery: from 4 weeks

Flat Bottom Wood-Fired Hot Tub with 12 Hydro Jets and mini LEDs for 3-4 people

£6,187

~~£6,653~~

VAT and delivery are included in the price.

Learn more

Delivery: from 3 weeks

Flat Bottom Wood-Fired Hot Tub with Hydro Jets and LEDs for 3-4 people

£4,439

~~£5,223~~

VAT and delivery are included in the price.

Learn more

Delivery: from 3 weeks

A Wood-Fired Hot Tub Sized for Small Families

Some tubs are made for two, like the ofuro, others for larger groups of 4–6. The Flat Bottom range sits comfortably in between — sized around small families who use their tub often

A comparison table for event seating options, comparing 'Ofuro', 'Flat Bottom', and 'Round Classic' in columns. The table lists capacity, height, base type, and suitability for couples, small families, or groups entertaining.

The Right Size for 3–4

Designed to seat two adults with one or two children, this size reflects the specific needs of a small family.

More Sociable Than an Ofuro

Compared to an ofuro, which seats only two, the Flat Bottom is larger — enough room for one or two children too.

More Intimate Than a Crowd Tub

Compared to our 4–6 person Round Classic, built for larger groups, the Flat Bottom keeps things closer and more personal — ideal for quiet family time rather than hosting a crowd.

A More Natural Way to Sit

An outdoor flat bottom hot tub with two people relaxing inside, surrounded by grass and a wooden deck. A chrome chimney stack is visible on the right side.

A round outdoor hot tub with a wood-look exterior and white interior, containing two people relaxing in shallow water. A matching wood-look filter box sits beside the tub on a patio, with grass and a wall in the background.

Easier to Watch Over Your Children

At 72 cm tall, the water sits noticeably lower than in a standard tub, which many parents find reassuring when bathing with younger children — you can see and reach them more easily

An illustration of a girl standing next to a tub. The heights of the girl and the tub are indicated.

Adjustable Door Latch, Built-In Airflow Control

The stove door hook catches on one of several notches — choose a closer or farther position to leave a small gap that fine-tunes airflow and helps control the burn

A close-up of a silver metal hot tub's stove lock on a gray steel textured surface.

Steps? Usually Not Needed

Most customers don't need stairs. Watch the video below to see how easy it is to get in without them — and how it looks with steps, if you'd prefer them

A Service Door Built for Easy, Safe Access

Every detail — from the latch to what's inside — is designed to make maintenance simple and safe

Individual Controls

Operate each component individually for the settings that suit your needs.

Magnetic Door

Magnets hold the service door firmly shut, so it stays closed on its own — no accidental opening.

A white electrical box with switches and a leakage relay, located inside the side wall of the hot tub

Protects Against Leaks

For added safety, a built-in leakage relay cuts off power if any irregular current is detected, preventing electrical hazards.

Delivered Pre-Assembled, Quick to Set Up

No complicated build — watch how simple setup really is

Flat bottom wood-fired hot tub with dimensions labeled in a garden setting

Frequently asked questions

How many people fit in a flat bottom tub?

Comfortably 3–4 — for example, two adults and one or two children.

Is it safe for young children?

The lower water level makes it easier to supervise children closely, but as with any tub, adult supervision is required at all times.

Do I need steps to get in?

Most people don't. Steps are available as an optional accessory for anyone who finds it uncomfortable to lift a leg over the rim.

Will it fit through my side gate?

Its low height gives it a much better chance than a standard tub, but always measure your narrowest access point before ordering.

How much water do I need to fill the tub?

Approximately 890 litres.

Customer Stories

Read customer reviews or browse our gallery of real customer photos to see how Gardenvity hot tubs look in real backyards

Nico Schneidewind

March 5, 2026

Wooden hot tub with metal exterior on a wooden deck outdoors.

“Smooth purchase process, friendly communication. The hot tub arrived well-packaged. The self-assembly went quickly and without any issues. We've been using our hot tub for about 7 weeks now and are thrilled – pure well...”

Smooth purchase process