What base does a hot tub need?

Hot tub plus water plus users can exceed 1,800 kg loaded. The base must be solid, level, and load-bearing: 100mm reinforced concrete pad is gold standard, or paving slabs on compacted MOT Type 1, or a properly engineered timber deck rated for the load (most domestic decks are not). Size to tub footprint plus 200mm overhang each side for service access.

What setup is involved for a first-time owner?

Fill from a garden hose through the filter housing (protects pumps from air-lock). First-fill: 90–180 minutes. Add start-up chemicals (non-chlorine shock plus stabiliser). Set heater to 38°C — 8–12 hours to reach temperature for a 1,300 L tub from cold. Test water chemistry: pH 7.2–7.6, alkalinity 80–120 ppm, sanitiser at manufacturer levels. First 30 days are the steepest learning curve.

What warranty cover do Steam & Oak hot tubs include?

Typically 2 years on shell and structure, 2 years on the equipment pack (pumps, heater, controls), and 5 years on the cabinet. Some performance models extend equipment-pack cover to 3 years. Support is UK distributor-backed with Steam & Oak as the customer-facing channel — you contact us, we coordinate the engineer network. Routine servicing isn't mandatory but annual filter replacement and water-care audit is sensible.

Steam & Oak — Hot Tubs FAQ (Delivery, Base, Electrics, Setup)

Q: How long does hot tub delivery take?

For in-stock models: typical UK delivery is 5–10 working days from order. For build-to-order or limited-edition models: typically 3–6 weeks, confirmed in writing. Specialist freight is used; the carrier confirms a delivery slot 2–3 working days before arrival with a 4-hour window. Northern Scotland, Highlands, and offshore postcodes can add 3–7 working days. You receive tracking emails at order confirmation, freight booking, slot confirmation, and on-the-day.

Q: How much does it cost to run a hot tub in the UK?

For a modern, well-insulated UK hot tub at 38°C used 2–4×/week: £40–85/month in electricity at ~25p/kWh. 13A small tub 2–3×/week: £35–55. 13A medium daily: £50–70. 32A daily: £60–85. With a heat pump: typically 60–75% reduction on heating — a £70 tub drops to £20–30. Variables that matter: insulation, cover condition, set temperature (every 1°C above 38°C adds ~10%), and season (winter is ~50% higher than summer).

Q: What's the difference between 13A and 32A hot tubs?

13A Plug & Play plugs into a standard outdoor socket — no electrician needed, lower install cost, slightly slower heat recovery, and the heater pauses while jets run. 32A hardwired needs a qualified electrician but delivers stronger hydrotherapy, faster heat recovery, and the heater runs alongside the jets. For first-time owners with a small garden, 13A is usually right. For daily year-round use or performance hydrotherapy, 32A pays back.

Q: What's involved in hot tub delivery?

Specialist freight, two-person crew, tail-lift vehicle. They deliver to kerbside or front of property; getting the tub from there to its final position is typically the customer's responsibility unless setup-and-commissioning was purchased as an add-on. For tubs going through a gate or side passage, the crew can usually handle a flat route up to ~10m; longer or stepped routes need a separate service. Confirm access in writing before booking.

Hot tubs are the most operationally-complex product we sell. The price tag is rarely the deciding factor — what catches first-time UK buyers off-guard is the install detail: which electrical supply you need, what base will support the loaded weight, what delivery actually involves, and how much it'll cost to run month after month. This FAQ is the consolidated answer to every pre-purchase question we get. We're a UK retailer working with accredited UK distributors; every figure here comes from real-world UK ownership data.

How long does hot tub delivery take?

Delivery timing depends on whether the tub is in stock or a build-to-order configuration. For in-stock models (the standard Steam & Oak range, most Hekla and Fonteyn models), typical UK delivery is 5–10 working days from order confirmation. For build-to-order or limited-edition models, lead times are usually 3–6 weeks, confirmed with you in writing at order. Specialist freight is used for all hot tubs (the unit is typically 250–350 kg dry weight and 1.5–2.5 m on its longest side), and the freight carrier confirms a delivery slot 2–3 working days before arrival, with a 4-hour window on the day. Your postcode determines available delivery options — Northern Scotland, the Highlands, and offshore postcodes can add 3–7 working days to mainland figures. You'll receive a tracking email with each stage: order confirmation, freight booking confirmation, slot confirmation, on-the-day text. For complex deliveries (limited access, crane required, two-person carry), we coordinate the survey before booking the slot.

How much does it cost to run a hot tub in the UK?

For a modern, well-insulated UK hot tub maintained at 38°C and used 2–4 times per week, expect £40–85 per month in electricity at current Ofgem-cap rates (~25p/kWh in early 2026). Breakdown by scenario:

Plug & Play 13A small tub (4-person, 1,000 L), used 2–3×/week: £35–55/month — slow heat recovery but low standing load.
Plug & Play 13A medium tub (5–6 person, 1,300 L), daily use: £50–70/month.
32A hardwired performance spa (5–7 person, 1,500–1,800 L), daily use: £60–85/month — more pump power but more efficient heater.
With a heat pump retrofit: typically 60–75% reduction on heating cost — a £70/month tub drops to £20–30/month.

The variables that actually matter: insulation quality (older or poorly-insulated tubs run 30–50% higher), cover condition (a saturated or warped cover is the single biggest leak), set temperature (every 1°C above 38°C adds ~10% to standing load), and seasonal exposure (winter standing load is roughly 50% higher than summer). For a detailed scenario breakdown with month-by-month figures, read our UK Hot Tub Running Costs guide. A heat pump like the InverBoost VX is the single biggest running-cost lever for daily users.

Choosing the right hot tub

The two questions that decide most purchases: how many people will use it regularly, and which electrical supply do you have or can install. A 13A Plug & Play tub (the Entry 4 or Entry 5) plugs into a standard outdoor socket — no electrician needed, lower install cost, slightly slower heat recovery. A 32A hardwired tub (the Aurora or Elysium Dual Max) needs a qualified electrician but delivers stronger hydrotherapy, faster heat recovery, and the heater can run alongside the jets (impossible on 13A). For first-time owners with a small garden, 13A is usually the right call. For households running the tub daily year-round or wanting performance hydrotherapy, 32A pays back through better day-to-day usability.

Base, placement & access

A hot tub plus water plus users can exceed 1,800 kg loaded weight. The base must be solid, level, and load-bearing: a 100 mm reinforced concrete pad is the gold standard, or paving slabs on a compacted MOT Type 1 sub-base, or a properly engineered timber deck rated for the load (most domestic decks are not). The pad should be sized to the tub footprint plus 200 mm overhang on each side for service access. Plan access from the kerb to the final position before ordering — measure gates (the tub goes through on its side, typically 1.0 m clearance needed), narrow paths, slopes, and turning points. Our Hot Tub Base & Placement Guide walks through every measurement that matters.

Electrical requirements (13A vs 32A)

13A Plug & Play: a standard outdoor 13A weatherproof socket, RCD-protected, ideally a dedicated circuit (sharing with other garden loads can trip the breaker). No electrician needed for the supply itself, though we recommend a registered electrician install a dedicated outdoor outlet if you don't already have one. 32A hardwired: a dedicated 32A circuit from your consumer unit, run in armoured cable to an outdoor isolator at the tub, installed by a qualified electrician to BS 7671 (current 18th Edition) with RCD protection and Part P notification. Typical electrician cost: £400–700 depending on cable run length. The 32A supply should be in place before delivery — retrofitting after the tub arrives is significantly more expensive.

Delivery basics (what to expect)

Specialist freight, typically a two-person crew with a tail-lift vehicle. They'll deliver to the kerbside or front of property; getting the tub from there to its final position is usually the customer's responsibility (or available as a paid upgrade — confirm at order). For tubs going through a gate or down a side passage, the crew can typically handle a flat, level route up to ~10 m; longer or stepped routes need a separate service. Confirm access in writing before booking. The crew won't position the tub on the base, level it, fill it, or commission it unless setup-and-commissioning was purchased as an add-on. See our Delivery & Installation page for tier-by-tier service options.

Setup & water care (first-time owners)

Setup is straightforward but exact. Fill from a garden hose through the filter housing (not the open shell — protects the pumps from air-lock). First-fill takes 90–180 minutes depending on tub size and water pressure. Add the start-up chemicals supplied with the tub (typically a non-chlorine shock plus a stabiliser). Set the heater to 38°C and let the water reach temperature (8–12 hours for a 1,300 L tub from cold mains water). Test water chemistry before first use — pH 7.2–7.6, total alkalinity 80–120 ppm, sanitiser at manufacturer-recommended levels. The first 30 days are the steepest part of the ownership learning curve; we send first-time owners a quick-start guide by email after delivery.

Warranty, servicing & support

All Steam & Oak hot tubs ship with a UK distributor-backed warranty, typically 2 years on the shell and structure, 2 years on the equipment pack (pumps, heater, controls), and 5 years on the cabinet. Some performance models extend equipment-pack cover to 3 years. Warranty support is handled through the UK distributor with us as the customer-facing channel — you contact us, we coordinate with the distributor's engineer network. Routine servicing isn't mandatory but is sensible: annual filter replacement, equipment-pack inspection, water-care audit. We don't sell extended warranties — if the equipment is going to fail, it usually does so within the first two years.

Quick pre-order checklist

Tub model and capacity match your routine (couple, family, social).
Electrical supply confirmed (13A socket exists, or 32A install booked with an electrician).
Base in place and level, sized to footprint + overhang.
Access route from kerb to final position confirmed (gates, paths, slopes, turning points measured).
Postcode confirmed for delivery quote (Highlands and offshore postcodes add lead time).
Cover lifter, steps included (standard on all Steam & Oak tubs).
Heat pump considered if year-round daily use.
Water care kit ordered (chemicals + test strips).

What's next

If you're narrowing down a specific tub, the full hot tub range lets you filter by power (13A vs 32A), capacity, and price. For the full pre-purchase walkthrough, read our UK Hot Tub Buying Guide — written by founder Sarb Gill (BSc Biology) and covering 13A vs 32A in detail, sizing, install, warranty, and what to avoid. Need help matching a tub to your space and budget? Email help@steamandoak.co.uk with your postcode and a photo of the intended location — Sarb reads every enquiry personally.