Estimated cost of averting one bath water scald
| NHS perspective | Lifetime perspective | |
| Estimated total number of scalds per year | 653 | 653 |
| Estimated number of affected households in social housing in the UK | 582 700 | 582 700 |
| Protected children (due to 68% reduction in risk) | 444 | 444 |
| Average NHS costs per injured child | £25 226 | £71 902 |
| Cost of TMV | £13.68 | £13.68 |
| Total cost of TMV installation | £7 971 336 | £7 971 336 |
| NHS costs avoided | £11 200 344 | £31 924 488 |
| Net savings of programme | £3 229 008 | £23 953 152 |
| Net saving per scald avoided | £7273 | £53 949 |
| Cost of TMV | £13.68 | £116.70 |
| Total cost of TMV installation | £7 971 336 | £68 001 090 |
| NHS costs avoided | £11 200 344 | £31 924 488 |
| Net savings (costs) of programme | £3 229 008 | (£36 076 602) |
| Net benefit (cost) per £1 spent | £1.41 | (£0.47) |
TMV, thermostatic mixer valve.