Utilities are the part of tiny home living that most people underestimate. The home itself might be sorted, but figuring out where your water comes from, where your waste goes, how you power your lights and appliances, and how you stay warm in winter — these decisions shape your daily life more than anything else. This guide covers every utility category so you can plan your setup before you move in, not after.
Water Supply
You have three main options for supplying water to a tiny home, and the right one depends entirely on where your home is located:
Municipal Hookup
If your tiny home is on a permanent foundation or in a park with utilities, connecting to a municipal water supply is the simplest option. You get reliable, treated water at standard pressure. This requires a physical connection to the water main and typically involves permit fees.
Well Water
On rural land, a drilled well is often the best long-term water source. It's an upfront cost ($5,000–$15,000 depending on depth) but gives you independent, low-cost water indefinitely. You'll need a pump and pressure tank, and you should test the water quality before drinking it.
Water Tank System
For off-grid or mobile tiny homes, a large onboard water tank (typically 50–200 gallons) that you fill periodically is the most flexible option. A 12V pump provides pressure throughout the home. This is the most common setup for tiny homes on wheels.
Essential: 12V Water Pump for Tank Systems
A 12V demand pump pulls water from your tank and pressurizes it throughout your tiny home. It runs only when you open a tap, drawing minimal power. Look for a model rated for at least 3.5 GPM for comfortable shower pressure.
- Works entirely off a 12V battery system
- Self-priming — starts automatically when a tap opens
- Low power draw — compatible with solar setups
- Easy to install with standard fittings
Electrical Power
How you power your tiny home is one of the biggest decisions you'll make — it affects your budget, your daily routine, and what appliances you can run.
Grid Hookup
Connecting to the electrical grid via a 30-amp or 50-amp RV-style hookup is the simplest and cheapest power setup if you're in a location that allows it. You get unlimited power for a monthly bill, just like a regular house.
Solar Power
A solar setup — panels, charge controller, battery bank, and inverter — gives you independent power anywhere the sun shines. A basic off-grid system for a tiny home typically runs $3,000–$8,000 installed, or $1,500–$4,000 if you do it yourself.
For a complete solar setup guide, see our best solar panels for tiny homes article.
Generator Backup
Even solar-powered tiny homes benefit from a propane or gas generator for extended cloudy periods or high-demand situations. A 2,000–3,500 watt inverter generator is quiet enough for residential use and handles most tiny home loads.
Top Pick: Portable Inverter Generator (2000W)
A 2,000-watt inverter generator provides clean power for sensitive electronics, runs quietly enough for a residential setting, and handles a tiny home's essential loads. Good as a primary power source or solar backup.
- Clean sine wave power — safe for laptops and electronics
- Quiet operation — under 60 dB at load
- Fuel-efficient at partial load
- Portable and easy to store
Sewage & Waste
Waste management in a tiny home requires more planning than a standard house because you may not have access to a municipal sewer system.
Sewer Hookup
The simplest option if available — connect your gray water (sink, shower) and black water (toilet) to the municipal sewer. Requires a physical hookup and local permits.
Septic System
On rural land, a traditional or alternative septic system handles waste independently. Installation runs $3,000–$10,000 but it's a permanent, low-maintenance solution once installed.
Composting Toilet + Gray Water System
The most off-grid-friendly setup: a composting toilet handles solid waste with no water or sewer connection, while gray water from the sink and shower goes to a small greywater system or holding tank. This is the most popular choice for truly off-grid tiny homes.
Heating & Cooling
A tiny home heats and cools faster than a standard house — for better and worse. A small space loses heat quickly in winter and gains heat fast in summer, so your HVAC choice matters more, not less.
Mini-Split Heat Pump
A mini-split is the gold standard for tiny home climate control. It heats and cools efficiently, runs on electricity, requires no ductwork, and a single 9,000–12,000 BTU unit handles most tiny homes in all but the harshest climates.
Propane or Wood Stove
For off-grid heating, a small propane wall heater or wood-burning stove provides reliable heat without electricity. Wood stoves add ambiance but require a chimney and regular fuel supply.
For a full breakdown of heating and cooling options, see our heating and cooling guide.
Internet & Connectivity
If you work remotely or just want reliable internet, connectivity is a utility you need to plan for.
Fixed Location Options
If your tiny home is stationary, standard cable or fiber internet is the most reliable and cost-effective option where available. Fixed wireless (from a local ISP) is a good alternative in rural areas.
Starlink
Starlink satellite internet has become the go-to solution for remote tiny home locations. It delivers 50–200 Mbps download speeds nearly anywhere in the US, works without any existing infrastructure, and the equipment mounts easily on a roof or pole.
Mobile Hotspot
For tiny homes on wheels or as a backup, a cellular hotspot from a major carrier works well in most populated areas. Unlimited data plans from T-Mobile and Verizon are reliable enough for remote work in most locations.
Propane
Even electric-first tiny homes often keep propane for cooking and backup heating. A standard 20 lb propane tank (the same as a backyard grill) lasts weeks for cooking-only use. A larger 100 lb tank or a buried 120-gallon tank is better for heating use.
Utility Cost Summary
- Municipal water hookup: $20–$60/month
- Grid electric (30-amp): $40–$100/month
- Solar system (DIY): $1,500–$4,000 upfront, ~$0/month
- Starlink internet: ~$120/month + $599 equipment
- Propane (cooking only): $20–$40/month
- Composting toilet: $800–$1,500 upfront, ~$0/month ongoing
Related guides: Water systems · Solar panels · Heating & cooling · Off-grid living