Guides for Los Angeles parents
The questions parents ask about a child's room, answered properly
Most of what you'll find online about nursery temperature, sizing and cost stops at the headline number. These guides go the rest of the way. They explain what the number means for one specific room in one specific Los Angeles neighborhood, and what to ask before anyone drills a hole in the wall.
Read them in this order
Start with the temperature the room should hold. Then size the equipment, choose between a mini split and a window unit, and price it. The right size decides what the system costs, and the cost guide assumes you already know it.
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New
01
Temperature
Where the 68–72°F number comes from, why the UK says cooler, what the AAP actually advises, and how to hold a steady temperature in a Los Angeles nursery overnight.
Read the temperature guide →
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02
Sizing
The ENERGY STAR chart, a room calculator, why every standard unit is "oversized" for a nursery, and the three numbers to ask for on any quote.
Size your child's room →
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New
03
Comparison
Sound, steadiness, air, safety and cost side by side, with manufacturer sound ratings and when a window unit is the sensible stopgap.
Compare the two →
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04
Cost
Real 2026 numbers for a single child's room, what makes an LA quote go up, which permit applies to your city, the honest rebate picture, and why the cheapest quote is rarely the quietest room.
Read the cost guide →
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05
How it works
Single-zone versus multi-zone, why a nursery usually wants its own compressor, and the "lonely head" problem that shows up when one room is added to a whole-house system.
Read the explainer →
The short answers
- What temperature should a baby's room be?
- Most US guidance puts it at 68–72°F (20–22°C); the UK's Lullaby Trust says 16–20°C. The AAP sets no single number and advises against overheating. See the temperature guide.
- What size mini split does a nursery need?
- Usually the smallest standard size, 6,000 BTU. ENERGY STAR's chart puts a 100–250 sq ft room at 5,000–6,000 BTU, so the unit is already slightly larger than the room. That's why its minimum capacity matters more than its label. See the sizing guide.
- Mini split or window unit for a nursery?
- For a room used every night, a right-sized mini split is usually quieter and steadier: Mitsubishi rates its 6,000 BTU FX indoor unit at 20 dB(A) on quiet fan, against a 42 dB(A) minimum for Midea's U-shaped window unit. A window unit is the cheaper stopgap. See the comparison.
- What does a mini split for one child's room cost in Los Angeles?
- Published 2026 Los Angeles data puts a single-zone system at roughly $2,300–$5,700 installed, typically around $3,400. Line-set length, your electrical panel and where the outdoor unit can sit move it most. See the cost guide.
- Single-zone or add a head to a whole-house system?
- For one child's room, a single-zone system with its own outdoor unit is usually the simpler fit. A lone small head on a large multi-zone system can struggle to run steadily. See how mini splits work.
Not sure which guide you need?
Start with the Free Air Check. We look at the room, the existing system and the air, and tell you what actually needs doing.
Get Your Free Air Check
